o00scorpion00o
100 kW
Hi Everyone,
I measured my Zippy's pack internal resistance today for the first time and the 4x 6 cell bricks are about 45 MOhms
The 2 x 4S packs were about 33.
I got 2x 6S bricks and used them before I got the other 2, then got the 2x 4S a while later.
All cells were about 6-9 MOhms
I have given the pack a hard enough time, and now for a while I'm running 24S 1P compared to normal 16S 2P, so right now I'm being hard enough on it!
I charge to no more than 4.15v per cell, and mostly bulk charge, but not right now as my bulk charger is set for 16S.
Discharge mostly to 3.6-3.8 volts before charging. I still have a low cell in one of the 6S bricks. I still get 8.6 ah out of it, in 16S 2P before lvc, after that the cells start to go off balance. So still getting the same capacity as new.
Roughly I have about 50-60 cycles ? only guess as I forgot to reset the cycle analyst to 0 when changing to LiPo!
I will have the pack a year I think in June sometime.
So what ye think, pack still good enough ?
I measured my Zippy's pack internal resistance today for the first time and the 4x 6 cell bricks are about 45 MOhms
The 2 x 4S packs were about 33.
I got 2x 6S bricks and used them before I got the other 2, then got the 2x 4S a while later.
All cells were about 6-9 MOhms
I have given the pack a hard enough time, and now for a while I'm running 24S 1P compared to normal 16S 2P, so right now I'm being hard enough on it!
I charge to no more than 4.15v per cell, and mostly bulk charge, but not right now as my bulk charger is set for 16S.
Discharge mostly to 3.6-3.8 volts before charging. I still have a low cell in one of the 6S bricks. I still get 8.6 ah out of it, in 16S 2P before lvc, after that the cells start to go off balance. So still getting the same capacity as new.
Roughly I have about 50-60 cycles ? only guess as I forgot to reset the cycle analyst to 0 when changing to LiPo!
I will have the pack a year I think in June sometime.
So what ye think, pack still good enough ?