Hi all,
I made a pack with brand new Sanyo NCR18650GA cells: 14s6p
After my first ride 1 6p block dropped to 3.01V and i got cut off by my BMS. All the other cellblocks where at 3.7V
I cut all spot-welded connections off that block and charged and discharged cell per cell with a B6 charger and got more or less the same results for the 6 cells: 177min 2956mAh, 178min 2958mAh, ...
The complete pack is now on the charger for more than 1 day and it looks like the BMS is not balancing: C1: 4.18 C2: 4.20 ... 4.17 4.21.
I measure this with my Fluke directly on the cells.
Is this pack out of Ballance ?
What could be the problem?
Thanks
I made a pack with brand new Sanyo NCR18650GA cells: 14s6p
After my first ride 1 6p block dropped to 3.01V and i got cut off by my BMS. All the other cellblocks where at 3.7V
I cut all spot-welded connections off that block and charged and discharged cell per cell with a B6 charger and got more or less the same results for the 6 cells: 177min 2956mAh, 178min 2958mAh, ...
The complete pack is now on the charger for more than 1 day and it looks like the BMS is not balancing: C1: 4.18 C2: 4.20 ... 4.17 4.21.
I measure this with my Fluke directly on the cells.
Is this pack out of Ballance ?
What could be the problem?
Thanks