Those cells were averaging about 2200ma. I made a 10s 16p battery with 2200 cells. No fuses, I hadn't heard of fusing back when I made it 2 years ago. Had to replace the BMS. Because it's 67v it's connected to the bike motor with only 2.5 flex. My next project is a solar generator. Probably going to be about 2kw.
sounds about right! have to wait for Rohan to chime in i think he said he built it to a 550ah target - very interesting results if that's the case..The whole ebike community doesn't fuse - more for the used cells than the new i thinks.. Still needs a good bms tho.
@@HBPowerwall Great info in the video mate! Thanks and keep up the good work. I'm new to this and I'm looking to buy solar this year and maybe get off grid in 1-2 years.
I've tested a few SZN cells failed after 120 ish cycles - Big brands or nothing - No way it's worth it, you can't make something cheaper with out first using cheaper materials or cheaper quality controls
Damn cool, I notice you use copper wires in this pack (for busbars), and is that what, resistor legs welded with a spotwelder? Very cool, Im considering doing this also, much cheaper than the damn nickel strips.
HBPowerwall mate have you by chance got an Aussie trusted supplier for the tinned copper ‘fuse wire” reels? Love ya work, and Nargaur I couldn’t agree more on losing the nickel strips 👍🏻
i thought it was important to have busbar exiting on 2 different side of the pack, like + on the right and - on the left for ex, in order to make sure that we wouldn't face the problem with cells closer to the "exit" of the busbar would be drained first. I though that by having busbar on 2 different sides, the repartition would be more homogeneous
I just got one of those chargers. Pretty cool so far! Now, I just need to assemble some packs. Headed to the plastics supplier for some acrylic sheets. jk lol!
True! How about showing them how to make their own with just a 18650 or any type of power supply! Mate I think I mite have to get my act together and make some video’s!
Does Rohan have a channel? I didn't see a link in the description. Really interested, as I have thousands of generic cells that I will be putting into packs.
Hello, how are you? I am very happy, because I watch your videos about lithium batteries, even though I do not know the English language nor do I watch scenes to try to take advantage of your extensive experience in this field and I have a great desire to make such a battery, but I do not face a problem in charging and there are no tools in our country I need to charge it, and I want you to be kind enough to charge it a simple way to charge it so that I can collect one large 12 volts. Can you help me? I have a regular Transformer charger or a power supply as a computer with all my respect to you.
Just curious, do you have minor dyslexia? I noticed you reversed numbers, from what was shown. More likely just a slip of the tongue. I get my 5’s and 7’s mixed up both reading and writing them.
I nearly got a heart attack from the 7S flying in xD
I'm a truck driver and as soon as I get done driving for the day, I tune in!
Glad I found this channel, cool stuff and keep up the good work!
Thanks for tuning in!
Great test, they performed much better than I would have guessed... It will definitely be interesting to see them again in 1 years time.
I'm really quite shocked - I just need to get back over there and swap out for another battery from his in-service pack to test
AND FROM THIS MOMENT FORWARD IT WAS DECLARED THAT IT WAS CALLED THE 'ROHAN SAFETY STANDARD'
Sorry Caps lock
I think the caps were required :)
That’s gold!
lol
Those cells were averaging about 2200ma. I made a 10s 16p battery with 2200 cells. No fuses, I hadn't heard of fusing back when I made it 2 years ago. Had to replace the BMS. Because it's 67v it's connected to the bike motor with only 2.5 flex. My next project is a solar generator. Probably going to be about 2kw.
sounds about right! have to wait for Rohan to chime in i think he said he built it to a 550ah target - very interesting results if that's the case..The whole ebike community doesn't fuse - more for the used cells than the new i thinks.. Still needs a good bms tho.
Very impressive results, definitely want to see what one of his "Premium" packs does.
For sure! Can't wait to grab another pack fingers crossed our schedules align this weekend
Very Very good 18650
That sound 0:22 was soooo loud! I jumped!
I'm sorry, it took a long time to care about audio levels as i'm half def so makes it hard to get right .. all over it these days tho
@@HBPowerwall Great info in the video mate! Thanks and keep up the good work. I'm new to this and I'm looking to buy solar this year and maybe get off grid in 1-2 years.
Thanks for the feedback buddy, good luck going offgrid
@@HBPowerwall you scared me , hell loud
What is a good stable degree for the batteries
what do you mean degree? Temp? that would depend on battery chemistry
this is a bloody amazingly good device.
Tell ya i love it more than the Ender3 3D printer !
@@HBPowerwall
i was tempted to buy one, but don't know what i could use it for, ....yet!
Please use my aff code!! helps a lot and I'll earn 5% of the sale cost
Nice charger. Just snagged it for 100 euro on banggood. 30 euro cheaper than anywhere else I could find.
Dam that's cheap!
Hi. I would like to set up a 3S / 100A pack and what is the ideal BMS? Congratulations for video..very good
Fun!
Thanks bud
about the fuse what do you use 3 amps or 5 amps and on wichs side do you use it on the ground or on the positief side ......good video good test
fuses are 5amp and it's fused both sides
How reliable are the generic (Chinese) cells? You ever had any problems or use them in your Powerwalls?
I've tested a few SZN cells failed after 120 ish cycles - Big brands or nothing - No way it's worth it, you can't make something cheaper with out first using cheaper materials or cheaper quality controls
@@HBPowerwall Cool Cool, im pretty new to it all, Just starting cell harvesting atm haven't got any solid plans as of yet.
Planing well will save you time and money - Load, budget, time frame ----wife that order i recommend
Damn cool, I notice you use copper wires in this pack (for busbars), and is that what, resistor legs welded with a spotwelder? Very cool, Im considering doing this also, much cheaper than the damn nickel strips.
resistor legs is for chumps we are way past that - we use something like this kit.com/HBPowerwall/diypowerwall-build-parts/gpw-30awg-bare-tinne
HBPowerwall mate have you by chance got an Aussie trusted supplier for the tinned copper ‘fuse wire” reels? Love ya work, and Nargaur I couldn’t agree more on losing the nickel strips 👍🏻
i thought it was important to have busbar exiting on 2 different side of the pack, like + on the right and - on the left for ex, in order to make sure that we wouldn't face the problem with cells closer to the "exit" of the busbar would be drained first. I though that by having busbar on 2 different sides, the repartition would be more homogeneous
for smaller packs this is a genuine concern - big ones ... nop no issue
@@HBPowerwall oh ok, thanks a lot for this clarification
How do u know the capacity of each cell after after discharging the battery ?.
You work that out on each cell before you build - www.diypowerwalls.com/opus with an opus discharger
SOOOOOOO at 4.27 did you say 252.60ah😆 💯MATHSSSSSSS💥💥💥💥
That's actually an English issue 😂
We all get a little lysdexia once in a while.
I just got one of those chargers. Pretty cool so far! Now, I just need to assemble some packs. Headed to the plastics supplier for some acrylic sheets. jk lol!
DO not attach or touch the output battery wires to the input they blow up lol
@@HBPowerwall Important safety tip. Got it. Thanks. Haha!
I blew my first sponsored unit up had to pay for another to do the review lolz dumb me
@@HBPowerwall That sucks! Sounds like something I'd do. I'll order another one. lol!
I had to i was so pissed with my self - live and learn
But the heat is trapped in the center of the pack!. The thin 4 x XX are much better at cooling
What heat?
You guy’s still solder your spun up bus bars! Why not spot weld them! Want me to show you all How?
Soldering is cheap, effective & accessible all around the world. Spotwelding is much better but also less accessible
True! How about showing them how to make their own with just a 18650 or any type of power supply! Mate I think I mite have to get my act together and make some video’s!
@@thomaskoorneef7777 That would have been good. Still could be.
Does Rohan have a channel? I didn't see a link in the description. Really interested, as I have thousands of generic cells that I will be putting into packs.
He doesn't any more but you can see his posts on fb facebook.com/groups/diypowerwalls/search/?query=Rohan%20Wilschefski&epa=SEARCH_BOX
240P?
From memory yes
Hello, how are you? I am very happy, because I watch your videos about lithium batteries, even though I do not know the English language nor do I watch scenes to try to take advantage of your extensive experience in this field and I have a great desire to make such a battery, but I do not face a problem in charging and there are no tools in our country I need to charge it, and I want you to be kind enough to charge it a simple way to charge it so that I can collect one large 12 volts. Can you help me? I have a regular Transformer charger or a power supply as a computer with all my respect to you.
ชอบจัง
Just curious, do you have minor dyslexia? I noticed you reversed numbers, from what was shown. More likely just a slip of the tongue. I get my 5’s and 7’s mixed up both reading and writing them.
Yep I do it constantly - probably just lazy lol
First!:)
⚡⬅▶Boom💥