Loved the 'problem' with the fuse! Made things work a lot better. Worked great even with the lose wire at 91x......... kidding of course!! Best to you and your family Jeff.
Congrats! I like the resistor idea! I about crapped my pants first time I hooked mine up too lol. With LA batteries, the inrush surge of power I think is not as much of an issue cause there higher resistance but Li-ion = less resistance so the inrush surge is bigger and there is a higher chance of maybe popping caps. I dont no for sure if thats accurate but like the idea of slowly charging those caps! May do something like that on mine!
Thanks! Yeah, my thoughts exactly. If someone chimes in and says, meh, it's nothing to worry about (here's proof), that will be interesting, but I'll already have my soft-starter by then sooooo.... Also, probably not a problem when the caps are new, but get some age on them and I could see the chances of them popping going up. Of course, I'll probably be at 48 volts by then. :)
@@CanispaterChristmas RIGHT!!! Im still using the APC and its old! I might even replace the caps with higher voltage. Full charge voltage is at 58.8v and I think there 60v caps! EEEEEK
So far, you took 6 months away from designing this years Christmas display... can't wait for you to get back to props. Meanwhile, this has definitely been an interesting project. At some point will you have a cost comparison to building this DIY powerwall vs say buying a Tesla wall pack? You have [at least] 6 months of your time invested along with oodles of new equipment that had to be purchased along with the battery cells, wiring, connectors, etc. You haven't even started showing solar panels you'll be using to charge this DIY powerwall. I understand it's a cool learning experience and I'm all for saving hundreds, possibly even thousands of dollars on projects like this. States like Florida don't have an option to truly be off the grid with solar which is utterly stupid... but I'd like to put some of my power usage off the grid with a powerwall, so I'm following what you're doing here with enthusiasm. And as always, you put a bit of comical undertone into each video. I think at least 5 solar panels should be on every home [installed by the power company] in states like Florida, Texas, California, Arizona and others that get 75% or more days of heavy sun exposure. The amount of power fed into the grid from 10 million or more solar panels could easily allow for the reduction of coal and other power plant usage and building. Solar is not the solution to all, but it's essentially a free power source for the next 4 billion years!
HA! I couldn't take it all off fast enough. It was hot in there! lol! Actually, that idea came to me from "Down Periscope" - the radio guy was always getting shocked and the one time he was prepared with a welding glove, it worked fine.
I'm wiring up my batteries through a DC breaker, then to a terminal block bus, just like you have. I'm almost finished soldering my 2nd 7s80p pack and was thinking about paralleling that pack through another DC breaker to the terminal bus. What is your thoughts on that?
Two cell-packs in parallel would be a 1s160p (assuming each cell-pack is 80p). If you mean series, you only need to break the connection once. Unless I'm misunderstanding the question.
@@CanispaterChristmas I have a set, just like you have. 7 sets of 80 batteries in parallel that are connected in series for a 24v pack. I am finishing up a second one the same way. I will then have 2 24v battery packs. I was going to parallel the 2 24v packs through a bus bar and have a breaker for each 24v pack.
The caps inside the inverter are what's causing this. The initial connection causes a high inrush, but once they are charged up, no problem. I get past this in a later video with a slow-start switch.
over kill thought a spark is a spark just roll with it and keep it safe. Do this run a 1500 watt space heater and keep and eye on your voltage drop if it goes below 15% wire up so it dont. What you dont want is a big fridge kicking in with the battery the lower range and surge spike happens the voltage drops and the inverter kicks off for low voltage. The less voltage drop the better the efficiency. My 12 volt 2000 watt set up is any where from .3 .5 voltage drop on 800 watts and that is with a 0 and 4 gauge wire going to it. Higher voltage can use smaller wire yes but keep the voltage drop to a minimum your better off. Your useing 6 awg with those bridge points i would guess youll lose about 2 volts although i could be wrong. Dont go by your manual test the low voltage cut off compared to the battery and the high voltage cut off and see if it will recover on its own or not so youll know.
Yeah, my thought was that the jolt could be a lot higher with liion vs lead-acid so I wanted to reduce that hit to the inverter. May not be a thing tho.
@@CanispaterChristmas Yup, it is a thing. Connecting LiIon pack to uncharged inverter caps will cause bad things to happen so precharge is good. If no precharge, the inrush current to charge the caps may cause the capacitor leads and/or the inverter PCB tracks to the caps to MELT open! Bigger the inverter, bigger the problem since bigger inverters have bigger/more caps.
Agree with the wire size comment. Rule of thumb for the battery wiring is to keep it as SHORT as possible and use the lowest wire gauge you can. But that low gauge stuff can get really expensive, really fast! Also, don't need the circuit breaker on the ground wire. If you connect solar panels, you should use an inline fuse on the PV+ wire.
They're working on it. Not sure if they said they fixed it yet, but they noticed spikes during primetime and are trying to handle all the traffic so I suppose they'll figure it out at some point, but still have work to do. But keep coming to the channel just in case. :)
Loved the 'problem' with the fuse! Made things work a lot better. Worked great even with the lose wire at 91x......... kidding of course!! Best to you and your family Jeff.
Haha! Thanks! Caught that did ya? You win! Best to you as well Pete.
You are the N1
😂
Congrats! I like the resistor idea! I about crapped my pants first time I hooked mine up too lol. With LA batteries, the inrush surge of power I think is not as much of an issue cause there higher resistance but Li-ion = less resistance so the inrush surge is bigger and there is a higher chance of maybe popping caps. I dont no for sure if thats accurate but like the idea of slowly charging those caps! May do something like that on mine!
Thanks! Yeah, my thoughts exactly. If someone chimes in and says, meh, it's nothing to worry about (here's proof), that will be interesting, but I'll already have my soft-starter by then sooooo.... Also, probably not a problem when the caps are new, but get some age on them and I could see the chances of them popping going up. Of course, I'll probably be at 48 volts by then. :)
@@CanispaterChristmas RIGHT!!! Im still using the APC and its old! I might even replace the caps with higher voltage. Full charge voltage is at 58.8v and I think there 60v caps! EEEEEK
Haha. Yes, that seems a little close for caps.
So far, you took 6 months away from designing this years Christmas display... can't wait for you to get back to props. Meanwhile, this has definitely been an interesting project. At some point will you have a cost comparison to building this DIY powerwall vs say buying a Tesla wall pack? You have [at least] 6 months of your time invested along with oodles of new equipment that had to be purchased along with the battery cells, wiring, connectors, etc. You haven't even started showing solar panels you'll be using to charge this DIY powerwall. I understand it's a cool learning experience and I'm all for saving hundreds, possibly even thousands of dollars on projects like this. States like Florida don't have an option to truly be off the grid with solar which is utterly stupid... but I'd like to put some of my power usage off the grid with a powerwall, so I'm following what you're doing here with enthusiasm. And as always, you put a bit of comical undertone into each video.
I think at least 5 solar panels should be on every home [installed by the power company] in states like Florida, Texas, California, Arizona and others that get 75% or more days of heavy sun exposure. The amount of power fed into the grid from 10 million or more solar panels could easily allow for the reduction of coal and other power plant usage and building. Solar is not the solution to all, but it's essentially a free power source for the next 4 billion years!
Thanks! I'll answer all this in the next video (and thanks for the patience), but prop builds start up after that.
Looks good, thanks.
👍
Sorry, how did you connect the 12v fan to the 24v system?
I used 24V fans. 👍
AAAHHHHH OOOOOOOHHHHH You better wear ALLLL the safety gear when wearing that shirt!!!!!!
HA! I couldn't take it all off fast enough. It was hot in there! lol! Actually, that idea came to me from "Down Periscope" - the radio guy was always getting shocked and the one time he was prepared with a welding glove, it worked fine.
@@CanispaterChristmas Thats usually how it goes LOL
I'm wiring up my batteries through a DC breaker, then to a terminal block bus, just like you have. I'm almost finished soldering my 2nd 7s80p pack and was thinking about paralleling that pack through another DC breaker to the terminal bus. What is your thoughts on that?
Two cell-packs in parallel would be a 1s160p (assuming each cell-pack is 80p). If you mean series, you only need to break the connection once. Unless I'm misunderstanding the question.
@@CanispaterChristmas I have a set, just like you have. 7 sets of 80 batteries in parallel that are connected in series for a 24v pack. I am finishing up a second one the same way. I will then have 2 24v battery packs. I was going to parallel the 2 24v packs through a bus bar and have a breaker for each 24v pack.
I don't see my reply here. Sorry. That sounds right to me.
Number of cells: 560
Number of Anderson Powerpole Connectors: 28
Number of Longmons: 7
Number of dog legs: 3
But it still lives! 😂
Nice...
👍
I was really hoping when you pulled that fuse out that the screen would cut to black.
Haha! I like your thinking!
In the auto world (12-14v) you connect ground last, keeping positive connected. You won't get the sparks you're seeing.
The caps inside the inverter are what's causing this. The initial connection causes a high inrush, but once they are charged up, no problem. I get past this in a later video with a slow-start switch.
@@CanispaterChristmas understood, just connecting the positive then the negative would reduce or resolve the spark/concern of safety.... I think...😂
Haha. I'll try that, but everyone complains about the first connection.
Soooo the idea for this is to???? Power your Christmas light display???
Haha. The "why" is here: ua-cam.com/video/3tpWOS6E4vM/v-deo.html Lighting videos will start back up soon. I have a lot of work to do this year. :)
over kill thought a spark is a spark just roll with it and keep it safe.
Do this run a 1500 watt space heater and keep and eye on your voltage drop if it goes below 15% wire up so it dont. What you dont want is a big fridge kicking in with the battery the lower range and surge spike happens the voltage drops and the inverter kicks off for low voltage. The less voltage drop the better the efficiency. My 12 volt 2000 watt set up is any where from .3 .5 voltage drop on 800 watts and that is with a 0 and 4 gauge wire going to it. Higher voltage can use smaller wire yes but keep the voltage drop to a minimum your better off. Your useing 6 awg with those bridge points i would guess youll lose about 2 volts although i could be wrong.
Dont go by your manual test the low voltage cut off compared to the battery and the high voltage cut off and see if it will recover on its own or not so youll know.
Yeah, my thought was that the jolt could be a lot higher with liion vs lead-acid so I wanted to reduce that hit to the inverter. May not be a thing tho.
@@CanispaterChristmas Yup, it is a thing. Connecting LiIon pack to uncharged inverter caps will cause bad things to happen so precharge is good. If no precharge, the inrush current to charge the caps may cause the capacitor leads and/or the inverter PCB tracks to the caps to MELT open! Bigger the inverter, bigger the problem since bigger inverters have bigger/more caps.
Agree with the wire size comment. Rule of thumb for the battery wiring is to keep it as SHORT as possible and use the lowest wire gauge you can. But that low gauge stuff can get really expensive, really fast! Also, don't need the circuit breaker on the ground wire. If you connect solar panels, you should use an inline fuse on the PV+ wire.
*WTF, I didn’t get a notification for your video.. I just happen to be coming to your channel.. UA-cam really pisses me off sometimes...*
They're working on it. Not sure if they said they fixed it yet, but they noticed spikes during primetime and are trying to handle all the traffic so I suppose they'll figure it out at some point, but still have work to do. But keep coming to the channel just in case. :)
CanispaterChristmas sweet... and yea I love ur channel!! I always be coming back, lot of good info you have!!! Ty!
Thanks! I really appreciate it.