Recent content by sargi

OK guys, I took apart my other li-ion battery (I thought it was lifepo4), and it is also a 13s, so I can use the same charger! So out of the 3 batteries I have, 2 are of the same voltage and type, so I'm pleased - means I should be able to charge them all with the same genasun solar controller...

Thanks for that. I've ordered an Imax B6 charger so hopefully it'll all balance nicely.

When checking the voltages, I noticed most groups being charged to 4.1v, but one group being about 3.8v. Now, with the right charger, should I expect the BMS to balance this, or am I looking at replacing a dodgy cell?

Here's a close-up of the cells, 3.7v

Hi guys. So here are a couple of pics of the pack. They're 3.7v cells, and it looks like there are 52 of them. They're wired in bunches of 4, so does this mean it's a 13s4p? And if so, should they be charged at 13x 3.7v, or 13x4.2v? I apologise for not quite getting my head around these...

Thanks for the input guys, I went with a mid-drive motor in the end, and it's badass. Does anyone know if internally geared hubs can take 1000w through the chain without damage?

I hear you guys, thanks for the guidance. I took it apart and it has an 18/8amp BMS with chinese writing on, and has loads of 18650 cells. I'll separate the pack out next week to study it more, but it looked like the cells were in groups, with only each group being connected to the BMS - does...

I'm thinking I might cut the sheathing off in the morning and have a proper look, a fire would be catastrophic. I made a mistake in my previous message, my first two batteries are lifepo4, I guess I'll know the third in when the sun's up!

Hi there - I've been lurking on here while fiddling and buying lots of bits and bobs, and appreciate the help you guys give by sharing info. This is my first message on here - I couldn't find anything that answered my question so here goes: I have a 15ah lipo that has a charging voltage (stated...

Hi guys. I have found this thread, but not any others that hint on answers so I wondered if anyone could help? I have a folding recumbent trike, made by Performer. It's a tadpole, with 2x 20" front wheel with disk brakes, and a 26 inch geared rear wheel. Now I would LOVE to be able to use...