I was out on the bike today and I didn't charge it because I needed it right away. Anyway I had used up about 5ah out of the usable 8.5ah out of the 10ah pack. I noticed it chucking a little and realised it was lvc kicking in. I have it set for around 54 volts for 16S.
The controller was keeping the power at a level that I wouldn't exceed the lvc.
I'm getting around 6 volts sag at about 45 ish amps, after only 5ah used. On a full charge I can easily get 80 amps.
If I turned the amps down I would still get full capacity, and probably would if I kept going, the controller would be limiting my power until the pack was empty.
But the 33-55 MOhms I'm seen is telling me the pack is close to being useless, so I reackon I would get a total of about 100-120 cycles and not full ones either. Probably 200 cycles If I run the pack at 30 amps and then less and less, but that would be no fun!
Sure I probably could have being much easier on the pack to begin with, running the first 3 bricks in parallel for a few weeks until I got my other 3 bricks for 2P was probably not a good idea.
The next LiPo buy will probably be the Zippy compact, 4S x 4 for 16S , maybe the hard case if they are available in the compact version. I have all the charging equipment and so it would be a waste not to use it again. I will take better care of the next batch of LiPo. But it has been fun abusing it!
Haibike EQ Trekking, powered by Bosch.