Hi,
I have 2 packs of 3S3P 11.1 V, 1500 mAh Kokam Li Poly batteries.
My first pack has the individual cells discharged with a Triton charger before initial charge. This pack reads at 12.44 Volts after charging.
The second pack was not discharged before charging. The cells were charged individually, and subsequently, the cells read; 11.9 V, 11.55 V and 11.55 V. After they were connected in parallel, the pack read
11.1 V.As you can see, for the second pack, there was a drop in voltage after sitting overnight in parallel. And the difference between the first pack and second pack is about 1.34 V.
Would anyone tell me why the difference? Also would discharging in flight allow a better charge to a higher voltage?
Thanking you first, Wan