I've been considering getting some of these because of the price. But this thread raises a lot of good points about issues they are having. Mine would not be in storage and would get used every day so I'm wondering if I would have the same issues that Will had with his.
I have actually used a load resister before to drain the batteries down. I've even connected a 12v inverter to one and run a box fan. I can get the voltages close but as soon as they charge back up they are out of whack again
I had thought about that. When I started buying these 12v batteries I didn't think I'd have issues like this. But that's how we learn I guess. I just can't spend $1500 on a server rack battery and also have to pay freight when I can get four 12v batteries for 800 shipped. Since I only have a...
First off please ignore the rats nest of an install I have going on. I've only been playing with solar for about a year and it's in preparation for moving and becoming off grid so I've been experimenting with stuff to see how it's going to work for me. This wall has been redone 10 times probably...
I had thought about that. Being out of balance wasn't an issue when it was being used as a 12v battery. But I had to swap it out with one in my 48v system because this one is exposed to the elements and it's getting cold out
I never did anything with it. I opted to use that battery in a 12v system in my truck to run a fridge. After months of being charged and discharged it's still out of balance. I'm actually having problems with multiple batteries at this point
They are gangfeng cells. I have zero issue with capacity. The packs just aren't balanced. Since I already bought 4 of these batteries I figure theres no harm in just rebuilding it and adding a bms.
That was the process I was going to use. I just figured with 16 cells to do it might be a little easier to put them all in parallel. I only have 4 of these redodo batteries but I found the same cells online. Thought I could order 16 more to make a 16s2p battery but they'd definitely have to be...
Before deciding it would be best to build my own 48v batteries I purchased 4 redodo 12v batteries. However I am having problems with the cells inside not being balanced. I paralleled and charged the batteries but I can not get any 2 batteries to have matching voltages. 1 always sky rockets to...