I have one I made no bms .. it's my trolling motor and I just put a rc balance checker on it but I hardly use it since it's connected to my fish finder shows my voltage and I have it set to beep at 11v .. I charge it on my icharger at 50amps .. so far so good been 4 years now no issues
It is odd that you connect the battery cells & BMS in a way that is not portable friendly (as you admitted), but then you put thread locker which is recommended for excessive vibration applications. I am also worried that the liquid may find it way all the way around the battery posts and prevent a full connection, thus raising cable resistance.
Thread lock never hurts and I put liquid electrical tape on all of the connections when I am done. I am putting it in a box and when I do the final wire I will do that step.
Good Video 👍......For a higher power, longer range, ebike. Would these batteries be better, performance wise to use than a bunch of 18650s?? With these, you wouldn't need a spot welder. But I believe many EVs use hundreds 18650, 14500 & 21700 🔋 batteries. Do you know the advantages of the smaller batteries 🆚 these brick size lifepo4.?
18650, the 3.6v ones, have a higher energy density so they are better on high C setups like an ebike. I started out using them but they are more dangerous and like you mention, you really need a spot welder. Prismatic 3.2v cells like in my video wouldn't be a good choice for an ebik. You could look into pouch cells.
lets get to brass taxes? how much do you suspect you can build a 12 volt 100ah battery for? considering you can find them around $150 complete? I hear these guys claiming they can build for so much cheaper but never seem to have numbers.
It is not long cheaper to build a small 12v 100ah battery. The cells alone now cost more than a off the shelf battery. DIY battery building is dead. Still fun, but no longer practical. I reviewed this battery recently and it would cost me $250 just to buy the cells and it sells for $179. ruclips.net/video/QaGlUD5279A/видео.html
@@OurBlackCatCottage I was looking at cells on the chinese ship site and thinking the same thing and wondering how people are doing it. I guess prices on prebuilt batteries went down since the time they said they can build them cheaper. Hopefully they keep going there, as Id love for them to be dirt cheap.
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I have one I made no bms .. it's my trolling motor and I just put a rc balance checker on it but I hardly use it since it's connected to my fish finder shows my voltage and I have it set to beep at 11v .. I charge it on my icharger at 50amps .. so far so good been 4 years now no issues
That's cool. Still don't recommend it for a beginner.
It is odd that you connect the battery cells & BMS in a way that is not portable friendly (as you admitted), but then you put thread locker which is recommended for excessive vibration applications. I am also worried that the liquid may find it way all the way around the battery posts and prevent a full connection, thus raising cable resistance.
Thread lock never hurts and I put liquid electrical tape on all of the connections when I am done. I am putting it in a box and when I do the final wire I will do that step.
Good Video 👍......For a higher power, longer range, ebike. Would these batteries be better, performance wise to use than a bunch of 18650s??
With these, you wouldn't need a spot welder. But I believe many EVs use hundreds 18650, 14500 & 21700 🔋 batteries. Do you know the advantages of the smaller batteries 🆚 these brick size lifepo4.?
18650, the 3.6v ones, have a higher energy density so they are better on high C setups like an ebike. I started out using them but they are more dangerous and like you mention, you really need a spot welder. Prismatic 3.2v cells like in my video wouldn't be a good choice for an ebik. You could look into pouch cells.
@@OurBlackCatCottage thanks 4 the reply info
Thanks for the video. What size wire should I use?
Depends
lets get to brass taxes? how much do you suspect you can build a 12 volt 100ah battery for? considering you can find them around $150 complete? I hear these guys claiming they can build for so much cheaper but never seem to have numbers.
It is not long cheaper to build a small 12v 100ah battery. The cells alone now cost more than a off the shelf battery. DIY battery building is dead. Still fun, but no longer practical.
I reviewed this battery recently and it would cost me $250 just to buy the cells and it sells for $179.
ruclips.net/video/QaGlUD5279A/видео.html
@@OurBlackCatCottage I was looking at cells on the chinese ship site and thinking the same thing and wondering how people are doing it. I guess prices on prebuilt batteries went down since the time they said they can build them cheaper. Hopefully they keep going there, as Id love for them to be dirt cheap.