So I bought 5 of these 10s2p huger tech pre production batteries today from a guy who was moving and had a bunch of stuff he wanted to get rid of for cheap. I payed $140 for the 5 of them so i think I got a pretty good deal. I’ve opened one of them up and took some pictures of them so hopefully you guys can tell me if these packs are ticking time bombs or decent quality. I looked online at what the cells where and they’re lgdamf11865 according to what I’ve found they’re 2.15 Ah and 20 amp discharge but i couldn’t find if mooch or some reliable 3rd party had tested them. I also wonder if I can pull the full 20 amps per cell without the bms tripping because of the current?
TLDR:
Are these packs well built?
Does anyone know if the bms is wired for charge and discharge or just charge?
Does someone know of a reliable spec sheet for these cells?
I would check the internal resistance of the P groups at least, the charge capacity, and if the groups are balanced…Also the way that the package it is build…it is not possible to give you an answer in such things…you have to find them your self
It’s really hard to get a good picture because if I lift one side there’s a wire that restricts the movement but I tried. The center welds all look the same as the outside ones in terms of quality and the pack is connected in the center by a piece of nickel that bends and goes around a little plastic divider piece that divides the two sides of the pack. And @Arzamenable those marks are just sharpie not burn marks.
I could be wrong but I am pretty sure at one point meepo offered an LG pack with their boards I bough the that pack and opened it later on it was payed out exactly the same and had the same divider in the middle with nickel strips bent around it
The one thing is that hose cells sag tons and you would have to bypass the bms
a single thin nickel strip to connect the positive and negative terminal??
Yeah, I wouldn’t bypass the BMS at all. If the BMS is 20a, its probably safe to run it at 20a
