I just got my mid Drive kit the other day and put it together today and took it for a spin I ❤ it. What sucks is it's too cold now it snowed the other day. When it comes to the battery I got 48v 13 hour battery. I freaking love my bike now. I feel like a 32 year old kid riding it😲🤩😎😍😂
That’s so cool. You don’t really picture females riding mid drives, or even knowing the difference, or what one even is in actuality. I don’t mean that to sound disrespectful, or to be rude, but it is a prevailing thought I believe. I’m glad Johnny mentioned this as I do not out think myself with opting for a 52, or possibly worse I am not sure 60+ volt battery. Yikes! 😆
@@buffalomind6838 I did have to have some help putting it together. One of my uncles helped some and watching Johnny nerd out how to put a mid Drive on your bike video helped too. It was a real B**** to get the crank arms off and get the stuff out of the bottom bracket I didn't have the right tool to do it and so my uncle had to cut the stuff off with an angle grinder. I figured my kit was missing the tool I needed the crank puller was missing.😂 all together it took 4 hours to put together after that with me and my uncle taking turns helping neither one of us have put a mid drive on a bike before. I'm glad it's done now I'm going to be using it to get to work when it's not so cold out❤😎
Volts times amps = watts, with higher volts it takes less amps to produce the same watts. Less amps means less current loss from the system wiring and less heat generated.😊
On my carbon FOCUS I mounted a BBS02 - 500W / 36V with 15Ah (540W) battery. It's not much but the space didn't allow for more... For my single track trails in the Swiss Alps it is more than enough (for example: my last ride three days ago: 48.3 km, 1160m elevation gain, 51% ascent, 22 % flat, 27% descent). Residual charge 21% 👍. Great I'd say
My data point. I built BBSHD with 52v 19.2 amp-hr battery, battery I purchased off Amazon with manufacturer in China with Tesla 21700 cells. Battery has a 45am BMS discharge and with the good cells, it was advertised to work well with a Bafang mid-drive. Its been flawless with about 2K miles on it. No error codes. Stock 30a max motor controller. BBSHD motor has never been opened up yet. Will likely do so for greasing in another 1-2K miles. That said...my build is with a road bike with 28mm wide tires and not a fat tire or even 2 inch wide tire bike with higher rolling resistance. My bike will do over 40 mph with 52t Lekkie chainring. I don't really need the 52V battery. In fact for cell integrity longer term, I tend to undercharge it to that closer to a 48V battery. I calibrated my power settings with the computer software aka Bafang configuration tool and almost never use maximum power. Anything above 32mph or so is unnecessary with no suspension....don't need to ride faster than that and will drop any road cyclist without a motor. I have never lost a race to another ebike on my build. I know there are 50mph e-bikes out in the wild, just haven't run across one. A tip to those considering building a 'fast' e-bike on a budget. What Johnny said. Just go 48V but min 17 amp-hr battery for range. Get the BBS02 and save a couple of hundred bucks over the BBSHD. The BBS02 is not quite as robust as the BBSHD which can take big watts but a hotrodded BBS02 can take 2500 watts with custom controller for quite a while. If you burn it up, replace it and then go flog the next one. Price of admission which is less than the BBSHD which in theory will last longer if undervolted. Johhny's passion for building Bafang e-bikes is understandable. They are an absolute blast to ride and fun to build for a motorhead...guys that grew up building cars and motorcycles. My question to Johnny is...and he likely doesn't know...many know Bafang is moving to CANBUS motor software such that its mandatory to pair with Bafang CANBUS batteries with Bafang CANBUS mid-drive motors. This is very bad. Many tuners have learned that the new CANBUS Bafang motor will work with aftermarket controller so you don't have to use the awful big brick CANBUS Bafang battery. Question is...how much longer will Bafang manufacture the BBSHD and BBS02? They are the most powerful, best bang for buck e-bike motors in the industry. They don't seem to be rare yet so I presume Bafang is still manufacturing them. Not sure how long which will be a real shame when they stop making them to be superceded by the crappy CANBUS motors which btw are the identical motor internally but with more restrictive controller to only allow use of a Bafang battery. Good news is, the controller can be changed.
My guess: Bafang is preparing to compete in the (neutered) road legal markets around the world. They're probably already ramping down production and just using up their stock parts on the BBSxx line. I think what you're seeing available now is all you'll ever see once they switch over to the horrid new canbus specifically intended to thwart people like us (the devoted fans that made them the big player in the DIY market).
My suppliers have said that Bafang has no plans to discontinue the bbs line in the near future. It is their bread and butter. Until the CanBus series gets traction, I wouldn’t fear 👍
@@JohnnyNerdOut They're partially to blame for her not riding. I'll give them a try though. I'll never give up trying. About 3 decades together so I am committed (or should be 😂).
I couldn't agree more and way to get right into it. I would also add that with the extra boost from 52v you do have a higher wear on the drivetrain, more with a BBSHD vs. BBS02. I also like that a 48v generally gets you better accuracy on the battery remaining. Keep on doing it man!
I've got both 48v 24amh and a 52v 21amh and the 52 gets way more mileage especially where I live. I really can't compare the two actually. I can go probably 3 times the distance with the 52v than out of the 48v. I did 21 kilometers today for example using the 52v and I only dropped from 100% to 98% charge. Then I used the 48v today and I used the throttle at level 9 for less than 2 kilometres at full speed and it dropped from 100% to 96%. I wish I had bought another 52v rather than a 48v. Get the 52v. It's the most value for money in my opinion
@@Yoshikarter1 keep in mind my bike has 29 inch rims. Smaller wheeled bikes/trikes may not get the same results. I did run my other bike using 27.5 wheels and road tyres and I didn't get the same speed or distance as my 29s
@@walter9724 My cargo trike has 26-inch rear wheels, not to mention it is considerably heavier than a run-of-the-mill two-wheeler. Regardless, a 52v should last longer per charge than a 48.
How is it that a higher capacity battery (the 48v one) gets less range then the one with smaller capacity (the 52v one)? The 48v one has 66wh more than the 52v one.
I need more *range.* There are 70+ mile trips in my future, and that’s when I’m not trying to go to *The Coast.* Never had trouble with the first one that was battery related @ 52 volts. Have ordered 31 Amp hour ~ 52 volt battery 3/3/2022. Should show late next month. Just ordered pair of lock ring sockets, 1/2 inch drive. Already have Torque wrench. Now just need brakes, ancillaries (spokes, etc) and fork.
I got a 52v battery, just based on bigger is better. Hope I don't run into issues with error codes. The "good" news is that I decided to do an e-bike conversion based on resilience in a SHTF scenario, and it seems like the chance of that being a wise decision is now higher. Yeah!
I have a question. If you have a 22 amp controller and you can change in your settings from 15 all the way up to 22 Amp, which one would you set your setting at? Maybe you could give me an explanation of each time you ramp up a amp what that does to the battery and the motor. Thanks for the videos they’re great.
@@djneils100 there are two different versions of the motor. 48 and 52. The 48v runs at 30 amps and can handle 52v batteries but can have issues (error codes) the 52v version is much more stable but only 28a. Of course there are weird scenarios where the settings are not as I just said, but that’s how it’s supposed to be 👍
@@djneils100 my buddy had this same issue when he swapped his 48v battery for a 52v. Had firmware issues with the stock controller that could only run 28a so he got a new oem fitment controller from Luna that allowed him to run 30a with no issues at all. Worth the $99 price. Just my 2 cents.
Kinda helps. I cant seem to find if my 48v battery on my efat bike with bafang hub motor will work with a bbs02 kit. I see no point in buying a 2nd battery when I have one and will never use both bikes at the same time. Just get a 2nd mount for the battery, its the connectors I cant find if are compatible or what
Great insight! As a 56 year old DIY Bafang user... with a 48 volt battery and 750 watts system... for my day to day commute...I think I could have done very well with less. So here's another question... for the minimalists out there: how low can we go???
That is a question whose answer is different depending on the rider. I have a BBS02 set for lower amps (to increase range on my old 6ah battery). I think it currently puts out about 500 watts nominal with bursts about 750. 20 years ago I could have done with less power and 30 years ago no power assistance at all.
I just ordered an intense 951 trail from Costco and it was $3500 and not even an e-bike. I wonder if I should return and look for something cheaper and buy the motor and batter conversion kit
I'v ran 54v milwaukee matts for 5 years(3-18v 9amps in series, and then another set in parralel ) giving me 54v X 18amps= 972w . three chargers, used twiced ,full charge! lots of weight, with a cyclone 3k motor. I have a new Kent 29 that I want to turn into a good comuter bike light and fast any Ideas???
I have a new 1000watt kit, came with the 52v battery in a rear rack. Unfortunately the battery set up will not work on my long tail. I bought the kit a guy bought 3 months ago still in box for $750. I’m thinking I should sell my battery and rack set up, and buy a battery that will go on my bottle cage area. What “shark”(?) or other battery should I order? From best place price wise?
Hey man I love the video, I think I am going to go with the 48v to save a bit of money😅 do you know what type of batteries that the bafang battery holds? I’ve been trying to find this information out for a good bit but with no success..
Generally batteries have nominal ratings or 48 or 52v. Either of those will work fine. The 52v battery will have a fully charged voltage of almost 59v, so you probably have a 48v battery.
As Johnny suggested, not much. Watts = Amps X Volts. Therefore: Watt/hrs = Amp/hr X Volts Therefore: 20 X 48...does it = 18.5 X 52 ? 960 watt/hr does it = 962 watt/hr ? Ans: dam close. Both configurations are very close to 1 Kilowatt/hr which is generally considered a benchmark for a very high capacity e-bike battery suitable to a high amp e-bike motor like Bafang mid-drive.
once I have installed and properly tested, when sould I start to re-charge my 48 volt 17.5 amp/hr , what are the limits ? I once read the voltage should not drop below XXX volts otherwise , it colud /would damage the battery
@@JohnnyNerdOut thank you for your expertise on the battery charge , and your videos were especially helpful ie…. The one where the bottom bracket is an hourglass shape.
I went with 52volt I am getting error code 12 h and the system shuts down intermittently. The website I bought all this from is gone. I want to build another bike and try 48v if that doesn’t work maybe another controller is in order. What do you think?
how dose one clear the errors if they pop up, i am waiting for my 52v battery to rock up. got the bbso2 750w motor and installedit just need that battery which is on the slow boat from china
Put my BBSHD in the other day with a 42t lekkie,the cassette is a 11t, only able to hit 30mph pedaling my ass off, do I have to reflash to get more mph, I put it in mode 9 lifting the back tire & speedo shows 32mph,I set the voltage(52v) & wheel size in centimeters??
❤ Great Chanel, Thanks, just a quick question for you or your community? I have a bbshd when I see these little bikes around city delivering food they have a whopping 72v battery, does it matter to the motor what the Voltage is like can I run 2 x 36 V to the bbshd or even the bbs02 for that matter. I hear what you have said about keeping to 48v but does it take a different motor as I can fit 2x 36 easier on frame than one big 48v 20 ah and it's distance , I prefer. any other ideas would be greatly appreciated. Indigo
You need to match the motor voltage with the correct battery voltage. Bafangs come in either 36v or 48-52v versions. Some motors out there (controllers) can handle a wide range of voltage with no problem. Not Bafang.
@@JohnnyNerdOut ▪️ Hey I'm thinking of getting a power station to charge my two batteries while riding around with my Dost bike turned off. That should be fine to do, or would the potential bumpiness create a safety hazard ? 🟥
Johnny put a 52 Volt battery on my Trek mountain bike build. This Winter, I stored the battery in my homes garage that is always above freezing ( 45 degree low-end) , but have noticed it's losing its charge after about a month. I'm wondering if the battery monitoring system is why it self drains so fast? Anyone else notice battery self draining ? What is considered as normal shelf drain life ?
Hi Johnny, My name is Scott from Michigan, Aka The E-Guy. I've been building Bafang mid-drives for 2 years now. Guessing about 30 so far. I have a supplier who have been very reliable and seemingly fare pricing. I emailed Bafang to try and open an account with them directly They never responded. Just wanted to reach out to ask if you give me some guidance on doing direct dealings with bafang. Hoping we could help each other out at times if we ever get in a jam on parts. It can be a bummer waiting to get stuff shipped from across the pond. My main kits I use are BBS02 48v 750s. Hailong 48v 17.5 Samsung 860c Display. Hard to find now. DPC-18 Display Gear shift sensor 46 chain rings Lekkie chain rings. Also mind me ask where your located . Thanks
Bafang does not sell direct to consumer/retailer unfortunately. They have a handful of distributors (all located on Alibaba.com and directly). I’d be happy to help you with parts in a pinch, but honestly there is not much margin in motor kits, it’s in the accessories.
Hey Johnny, I've enjoyed your shows and learned a lot over the past few months. I'm tackling my first build, and putting a cyc stealth on my santa cruise with a 52 volt battery. I"m learning the hard way that the battery does not fit into the spot where they would usually go, so looking like my two choices are either a very small cube battery, or put the battery I was planning to use (17.5 ah) on the top cross bar like a motor cycle gas tank, which I know is probable not ideal for handling if doing single track riding, but, figure I'll adapt for the time being. Any words of wisdom?
Thanks. Kind of an epic long story on ordering parts, you being busy and all, I won't go into detail... but, going to downsize slightly to a 14ah on the cross bar for smoother longer distance trail rides, then get a separate 8ah 50w mini pack for shorter burst on more aggressive single track ride with my buddies on their factory bikes. Background - bought a couple of second hand volt mariners last year. Was not the style I was interested in, but good deal and got hooked immediately. Even those little weird looking bikes are way more fun than anyone would ever expect. Looking forward to compleating my old Santa Cruz tall boy as a conversion.
Johnny could u please help me I've got a 36v 350w bafang mid drive it was working fine now E30 I've tried different screens etc took the motor back off the bike and it worked fine for 10 15 min now back to E30
Hey James, I'd be happy to see what I can do. Please book a troubleshooting consult with me over on my website. www.johnnynerdout.com/book-online Thanks!
First, I want to say that I have loved your videos and have found them to be very informative and more than anything I appreciate your honesty. I'm new to the world of e-bikes or even more so, bikes in general. So new that I don't event own an e-bike. I've been doing a lot of research but recently stumbled upon something that seems to be a good deal. I found a new Diamondback Union 1 for $3,000 instead of the usual $3,500-$3750. Does the lower price seem worth it for a Diamondback or should I still consider building my own? I test rode it and it felt amazing. Any input from anyone is greatly appreciated! @JohnnyNerdOut
The man with all the info and willing to share. Another informative video. Keep up the good work.
I just got my mid Drive kit the other day and put it together today and took it for a spin I ❤ it. What sucks is it's too cold now it snowed the other day. When it comes to the battery I got 48v 13 hour battery. I freaking love my bike now. I feel like a 32 year old kid riding it😲🤩😎😍😂
That’s so cool. You don’t really picture females riding mid drives, or even knowing the difference, or what one even is in actuality. I don’t mean that to sound disrespectful, or to be rude, but it is a prevailing thought I believe.
I’m glad Johnny mentioned this as I do not out think myself with opting for a 52, or possibly worse I am not sure 60+ volt battery. Yikes! 😆
@@buffalomind6838 I did have to have some help putting it together. One of my uncles helped some and watching Johnny nerd out how to put a mid Drive on your bike video helped too. It was a real B**** to get the crank arms off and get the stuff out of the bottom bracket I didn't have the right tool to do it and so my uncle had to cut the stuff off with an angle grinder. I figured my kit was missing the tool I needed the crank puller was missing.😂 all together it took 4 hours to put together after that with me and my uncle taking turns helping neither one of us have put a mid drive on a bike before. I'm glad it's done now I'm going to be using it to get to work when it's not so cold out❤😎
Volts times amps = watts, with higher volts it takes less amps to produce the same watts. Less amps means less current loss from the system wiring and less heat generated.😊
On my carbon FOCUS I mounted a BBS02 - 500W / 36V with 15Ah (540W) battery. It's not much but the space didn't allow for more... For my single track trails in the Swiss Alps it is more than enough (for example: my last ride three days ago: 48.3 km, 1160m elevation gain, 51% ascent, 22 % flat, 27% descent). Residual charge 21% 👍. Great I'd say
Outstanding clarification. Thank you.
I was guessing something like this, but it's nice to hear the full thought.
My data point. I built BBSHD with 52v 19.2 amp-hr battery, battery I purchased off Amazon with manufacturer in China with Tesla 21700 cells. Battery has a 45am BMS discharge and with the good cells, it was advertised to work well with a Bafang mid-drive. Its been flawless with about 2K miles on it. No error codes. Stock 30a max motor controller. BBSHD motor has never been opened up yet. Will likely do so for greasing in another 1-2K miles.
That said...my build is with a road bike with 28mm wide tires and not a fat tire or even 2 inch wide tire bike with higher rolling resistance. My bike will do over 40 mph with 52t Lekkie chainring. I don't really need the 52V battery. In fact for cell integrity longer term, I tend to undercharge it to that closer to a 48V battery. I calibrated my power settings with the computer software aka Bafang configuration tool and almost never use maximum power. Anything above 32mph or so is unnecessary with no suspension....don't need to ride faster than that and will drop any road cyclist without a motor. I have never lost a race to another ebike on my build. I know there are 50mph e-bikes out in the wild, just haven't run across one.
A tip to those considering building a 'fast' e-bike on a budget. What Johnny said. Just go 48V but min 17 amp-hr battery for range. Get the BBS02 and save a couple of hundred bucks over the BBSHD. The BBS02 is not quite as robust as the BBSHD which can take big watts but a hotrodded BBS02 can take 2500 watts with custom controller for quite a while. If you burn it up, replace it and then go flog the next one. Price of admission which is less than the BBSHD which in theory will last longer if undervolted.
Johhny's passion for building Bafang e-bikes is understandable. They are an absolute blast to ride and fun to build for a motorhead...guys that grew up building cars and motorcycles.
My question to Johnny is...and he likely doesn't know...many know Bafang is moving to CANBUS motor software such that its mandatory to pair with Bafang CANBUS batteries with Bafang CANBUS mid-drive motors. This is very bad. Many tuners have learned that the new CANBUS Bafang motor will work with aftermarket controller so you don't have to use the awful big brick CANBUS Bafang battery. Question is...how much longer will Bafang manufacture the BBSHD and BBS02? They are the most powerful, best bang for buck e-bike motors in the industry. They don't seem to be rare yet so I presume Bafang is still manufacturing them. Not sure how long which will be a real shame when they stop making them to be superceded by the crappy CANBUS motors which btw are the identical motor internally but with more restrictive controller to only allow use of a Bafang battery. Good news is, the controller can be changed.
My guess: Bafang is preparing to compete in the (neutered) road legal markets around the world. They're probably already ramping down production and just using up their stock parts on the BBSxx line. I think what you're seeing available now is all you'll ever see once they switch over to the horrid new canbus specifically intended to thwart people like us (the devoted fans that made them the big player in the DIY market).
My suppliers have said that Bafang has no plans to discontinue the bbs line in the near future. It is their bread and butter. Until the CanBus series gets traction, I wouldn’t fear 👍
@@JohnnyNerdOut Awesome! I still have plans to convert a fat bike & a sliver of hope I can get my wife to embrace an e-bike.
@@michaelsprinzeles4022 chocolates my man. Chocolates.
@@JohnnyNerdOut They're partially to blame for her not riding.
I'll give them a try though. I'll never give up trying. About 3 decades together so I am committed (or should be 😂).
I couldn't agree more and way to get right into it. I would also add that with the extra boost from 52v you do have a higher wear on the drivetrain, more with a BBSHD vs. BBS02. I also like that a 48v generally gets you better accuracy on the battery remaining. Keep on doing it man!
I've got both 48v 24amh and a 52v 21amh and the 52 gets way more mileage especially where I live. I really can't compare the two actually. I can go probably 3 times the distance with the 52v than out of the 48v. I did 21 kilometers today for example using the 52v and I only dropped from 100% to 98% charge. Then I used the 48v today and I used the throttle at level 9 for less than 2 kilometres at full speed and it dropped from 100% to 96%. I wish I had bought another 52v rather than a 48v. Get the 52v. It's the most value for money in my opinion
Reading this made me glad that I got a 52v for my cargo trike.
@@Yoshikarter1 keep in mind my bike has 29 inch rims. Smaller wheeled bikes/trikes may not get the same results. I did run my other bike using 27.5 wheels and road tyres and I didn't get the same speed or distance as my 29s
@@walter9724 My cargo trike has 26-inch rear wheels, not to mention it is considerably heavier than a run-of-the-mill two-wheeler. Regardless, a 52v should last longer per charge than a 48.
How is it that a higher capacity battery (the 48v one) gets less range then the one with smaller capacity (the 52v one)?
The 48v one has 66wh more than the 52v one.
@@Marco-vn1db the 48v has higher amp hours 24v21. Not sure why it is the way it is but it is🤣👍
I need more *range.* There are 70+ mile trips in my future, and that’s when I’m not trying to go to *The Coast.*
Never had trouble with the first one that was battery related @ 52 volts.
Have ordered 31 Amp hour ~ 52 volt battery 3/3/2022. Should show late next month.
Just ordered pair of lock ring sockets, 1/2 inch drive. Already have Torque wrench.
Now just need brakes, ancillaries (spokes, etc) and fork.
52v 20ah on my bbshd, I’ve never had any codes over 4000+ miles of riding
suggesting the middle ground. 14s pack charged up to 80-90%, very easy to adjust most chargers. Longer pack life by far.
I got a 52v battery, just based on bigger is better. Hope I don't run into issues with error codes. The "good" news is that I decided to do an e-bike conversion based on resilience in a SHTF scenario, and it seems like the chance of that being a wise decision is now higher. Yeah!
I went 52. Did what I did. I'm a big boy, needed the grunt.
52v battery fried my controller so I'd recommend 48v
I preferred the math of the 48 volts.
I have a question. If you have a 22 amp controller and you can change in your settings from 15 all the way up to 22 Amp, which one would you set your setting at? Maybe you could give me an explanation of each time you ramp up a amp what that does to the battery and the motor. Thanks for the videos they’re great.
you should do a video on the new bafang m625
ua-cam.com/video/Ci6Jr6vkOqI/v-deo.html&ab_channel=JohnnyNerdOut
I went with 48v on my 750w mid drive - not disappointed.
if you buy a 52v specific bafang motor the amps are limited to 28. On the 48v version it's 30. Almost identical power
Very good point that I forgot to mention !
@@JohnnyNerdOut it's a shame - I'd really like to have my 52v set to 30amps but don't feel confident screwing around with the firmware
@@djneils100 there are two different versions of the motor. 48 and 52. The 48v runs at 30 amps and can handle 52v batteries but can have issues (error codes) the 52v version is much more stable but only 28a. Of course there are weird scenarios where the settings are not as I just said, but that’s how it’s supposed to be 👍
@@JohnnyNerdOut I see - I thought it was just the controller that was different and the motor was the same on both versions?
@@djneils100 my buddy had this same issue when he swapped his 48v battery for a 52v. Had firmware issues with the stock controller that could only run 28a so he got a new oem fitment controller from Luna that allowed him to run 30a with no issues at all. Worth the $99 price. Just my 2 cents.
Still need to get my batter and always thinking about this.
Getting my battery soon 52v and then its complete. First build.
I was wondering why I saw LUNA shipping their new X2 bike with 48v. I always thought it was more about supply constraints.
Kinda helps. I cant seem to find if my 48v battery on my efat bike with bafang hub motor will work with a bbs02 kit. I see no point in buying a 2nd battery when I have one and will never use both bikes at the same time. Just get a 2nd mount for the battery, its the connectors I cant find if are compatible or what
Great insight!
As a 56 year old DIY Bafang user... with a 48 volt battery and 750 watts system... for my day to day commute...I think I could have done very well with less.
So here's another question... for the minimalists out there: how low can we go???
That is a question whose answer is different depending on the rider. I have a BBS02 set for lower amps (to increase range on my old 6ah battery). I think it currently puts out about 500 watts nominal with bursts about 750. 20 years ago I could have done with less power and 30 years ago no power assistance at all.
@@michaelsprinzeles4022 Also depends on the hills.
I just ordered an intense 951 trail from Costco and it was $3500 and not even an e-bike. I wonder if I should return and look for something cheaper and buy the motor and batter conversion kit
Hi whats between different with 52v 28A and 52v 1000w
Which voltage functions better for hot climates, is one a little cooler for batteries or operation or they about the same for heat tolerance?
In theory the higher voltage pack would create less heat at the same wattage due to drawing less amps. But the difference is very small
52V will give your motor more speed, right? You should be able to use the same controller, right?
Yes and yes
I use 52v on my bafang bbshd and 48v with BBSO2 mountain bike
Okay so now I'm just as confused after watching the video as I was before. So are 52ah a bad idea?
I usually recommend 52v unless you never plan on going over 20mph and prioritize reliability way over performance.
Can I put a 52v battery an all bbs02 750w motors? Or do I need a specific version for it?
All the ones I carry are compatible with either
Mines 48 and can run 52 battery too !
I'v ran 54v milwaukee matts for 5 years(3-18v 9amps in series, and then another set in parralel ) giving me 54v X 18amps= 972w . three chargers, used twiced ,full charge! lots of weight, with a cyclone 3k motor.
I have a new Kent 29 that I want to turn into a good comuter bike light and fast any Ideas???
for bbs02b 750w can i use 14s 58.8v? Or do I need to flash another firmware?
I have a new 1000watt kit, came with the 52v battery in a rear rack. Unfortunately the battery set up will not work on my long tail. I bought the kit a guy bought 3 months ago still in box for $750. I’m thinking I should sell my battery and rack set up, and buy a battery that will go on my bottle cage area. What “shark”(?) or other battery should I order? From best place price wise?
Hey man I love the video, I think I am going to go with the 48v to save a bit of money😅 do you know what type of batteries that the bafang battery holds? I’ve been trying to find this information out for a good bit but with no success..
I have a question, can hook 72 volts to 750 watt and if so what kinda controller and monitor?
That helped , Thanks
Can I use a 54V battery with the 750W Bafang?
Generally batteries have nominal ratings or 48 or 52v. Either of those will work fine. The 52v battery will have a fully charged voltage of almost 59v, so you probably have a 48v battery.
Does anyone know if Unit Power Pack 48v and 52v 13ah bases are interchangeable?
Hey! Is there a big difference between 48v 20Ah and 52v 18/19ah? Thks
As Johnny suggested, not much.
Watts = Amps X Volts.
Therefore:
Watt/hrs = Amp/hr X Volts
Therefore:
20 X 48...does it = 18.5 X 52 ?
960 watt/hr does it = 962 watt/hr ?
Ans: dam close. Both configurations are very close to 1 Kilowatt/hr which is generally considered a benchmark for a very high capacity e-bike battery suitable to a high amp e-bike motor like Bafang mid-drive.
Do the bafang kits work with SRAM AXS 12spd cassettes?
Has anyone built their own battery? I have tons of laptop batteries and use the for all sorts of lighting and camping stuff now.
Whats about the Bafang Ultra? Is the 48v more reliable than the 52v?
Bafang where they are??
UPP 52V/48V 13Ah Ebike Lithium-ion Battery for 1000W 1200W Electric Bike Hailong how long they last ??
What kind of hassle is it to use a 52 on a BBSO2?
I really like that shirt...:)
What are the cells
Look up 18650 or 21700. Virtually all ebike batteries are packs containing those lithium-ion batteries
Sir, I went to your site and the page is very annoying. It won't move. I want a battery for my Bafang recumbent trike. do sell these batteries?
Yes I sell batteries that are compatible with Bafang motors.
www.johnnynerdout.com/shop
If you have an error code while out riding will it render the battery useless for the rest of the ride? Thanks!
Oftentimes yes until you figure out the code
once I have installed and properly tested, when sould I start to re-charge my 48 volt 17.5 amp/hr , what are the limits ? I once read the voltage should not drop below XXX volts otherwise , it colud /would damage the battery
48v batteries are generally dead around 41v but might start puttering out around 43v. I’d charge at around 45v up to 53v to maximize life
@@JohnnyNerdOut thank you for your expertise on the battery charge , and your videos were especially helpful ie…. The one where the bottom bracket is an hourglass shape.
Wish you lived in California !
I went with 52volt I am getting error code 12 h and the system shuts down intermittently. The website I bought all this from is gone. I want to build another bike and try 48v if that doesn’t work maybe another controller is in order. What do you think?
Did u fix it? Thinking about geting a 52v mid drive
how dose one clear the errors if they pop up, i am waiting for my 52v battery to rock up. got the bbso2 750w motor and installedit just need that battery which is on the slow boat from china
The codes get cleared once the error goes away automatically usually.
Put my BBSHD in the other day with a 42t lekkie,the cassette is a 11t, only able to hit 30mph pedaling my ass off, do I have to reflash to get more mph, I put it in mode 9 lifting the back tire & speedo shows 32mph,I set the voltage(52v) & wheel size in centimeters??
Something ain’t right. You should be hitting 50+ with the wheel off the ground. Check your speed limit setting
@@JohnnyNerdOut Thanx,I reset everything & it straightened it out
❤ Great Chanel, Thanks, just a quick question for you or your community? I have a bbshd when I see these little bikes around city delivering food they have a whopping 72v battery, does it matter to the motor what the Voltage is like can I run 2 x 36 V to the bbshd or even the bbs02 for that matter. I hear what you have said about keeping to 48v but does it take a different motor as I can fit 2x 36 easier on frame than one big 48v 20 ah and it's distance , I prefer. any other ideas would be greatly appreciated.
Indigo
You need to match the motor voltage with the correct battery voltage. Bafangs come in either 36v or 48-52v versions. Some motors out there (controllers) can handle a wide range of voltage with no problem. Not Bafang.
Also if this is true which I do not doubt at all’ how would a 60 or 72V do? Would it simply disintegrate the motor and partially your leg?
It would accelerate overheating your motor but disintegrate it (bbshd).
My bafang 500w came with a 36v 13aH. The battery was stolen. Can I put a 48v on it?
No ☹️
@@JohnnyNerdOut
▪️
Hey I'm thinking of getting a power station to charge my two batteries while riding around with my Dost bike turned off.
That should be fine to do, or would the potential bumpiness create a safety hazard ?
🟥
Johnny put a 52 Volt battery on my Trek mountain bike build. This Winter, I stored the battery in my homes garage that is always above freezing ( 45 degree low-end) , but have noticed it's losing its charge after about a month. I'm wondering if the battery monitoring system is why it self drains so fast? Anyone else notice battery self draining ? What is considered as normal shelf drain life ?
Can’t you trickle charge like motorcycles riders do in winter ?
Why is that Johnny? Is it just because 48volts have been the standard for such a long time that they’ve programmed the motors to fit them perfectly?
Generally 48-52v is a good voltage to achieve 750w legal limit. 72v would be pulling 11 amps. That’s like a Ferrari governed to 55mph.
Neither! 72v all the way! True power and performance!
Haha, but then you have to get one of your controllers first 👍
Hi Johnny, My name is Scott from Michigan, Aka The E-Guy. I've been building Bafang mid-drives for 2 years now. Guessing about 30 so far. I have a supplier who have been very reliable and seemingly fare pricing. I emailed Bafang to try and open an account with them directly They never responded. Just wanted to reach out to ask if you give me some guidance on doing direct dealings with bafang. Hoping we could help each other out at times if we ever get in a jam on parts. It can be a bummer waiting to get stuff shipped from across the pond. My main kits I use are BBS02 48v 750s.
Hailong 48v 17.5 Samsung
860c Display. Hard to find now.
DPC-18 Display
Gear shift sensor
46 chain rings
Lekkie chain rings.
Also mind me ask where your located . Thanks
In what quadrant of MI are you?
You may be near me, and I'm in the market.
@@c6rocks Highland Mi near Milford
Bafang does not sell direct to consumer/retailer unfortunately. They have a handful of distributors (all located on Alibaba.com and directly). I’d be happy to help you with parts in a pinch, but honestly there is not much margin in motor kits, it’s in the accessories.
Bafang isn’t selling motors to joe schmoes you gotta buy like a million $$$ worth , according to the guys at luna
@@EBikeBuilder_ I kinda figured, I'm just a Joe. Lol it's worth a try, I'm only buying 30k worth in a season.
Last time I checked, you had nothing on the shelf..
Premium Ebike batteries are hard to keep on the shelf. I have 52v 17.5ah currently though 3-11-22
Hey Johnny, I've enjoyed your shows and learned a lot over the past few months.
I'm tackling my first build, and putting a cyc stealth on my santa cruise with a 52 volt battery. I"m learning the hard way that the battery does not fit into the spot where they would usually go, so looking like my two choices are either a very small cube battery, or put the battery I was planning to use (17.5 ah) on the top cross bar like a motor cycle gas tank, which I know is probable not ideal for handling if doing single track riding, but, figure I'll adapt for the time being. Any words of wisdom?
I’ve put batteries on top of the top tube with good results. Just be careful when riding off-road because things will break if you crash
Thanks. Kind of an epic long story on ordering parts, you being busy and all, I won't go into detail... but, going to downsize slightly to a 14ah on the cross bar for smoother longer distance trail rides, then get a separate 8ah 50w mini pack for shorter burst on more aggressive single track ride with my buddies on their factory bikes.
Background - bought a couple of second hand volt mariners last year. Was not the style I was interested in, but good deal and got hooked immediately. Even those little weird looking bikes are way more fun than anyone would ever expect. Looking forward to compleating my old Santa Cruz tall boy as a conversion.
Johnny could u please help me I've got a 36v 350w bafang mid drive it was working fine now E30 I've tried different screens etc took the motor back off the bike and it worked fine for 10 15 min now back to E30
Hey James, I'd be happy to see what I can do. Please book a troubleshooting consult with me over on my website. www.johnnynerdout.com/book-online Thanks!
go 50 50
Correct answer… 72v lol
subscribed. hit like...
First, I want to say that I have loved your videos and have found them to be very informative and more than anything I appreciate your honesty. I'm new to the world of e-bikes or even more so, bikes in general. So new that I don't event own an e-bike. I've been doing a lot of research but recently stumbled upon something that seems to be a good deal. I found a new Diamondback Union 1 for $3,000 instead of the usual $3,500-$3750. Does the lower price seem worth it for a Diamondback or should I still consider building my own? I test rode it and it felt amazing. Any input from anyone is greatly appreciated! @JohnnyNerdOut
p.s. this will mainly be a commuter bike but I'd like the option to take out on simple trails if possible.