Question about charge time

[EBCooper]

One of my TP 3s 2200 packs seems to take longer and longer to charge. Last charge time was around 80 minutes and I'm only putting back around 1400MAH. Its the last part of the charge that is taking the time, it sits at .1 amp for about 30 to 40 minutes. The time seems to be getting longer and longer and the pack has about 50 cycles on it. Whats the deal here, is it dying?

BTW, I'm using a BC8 and have balance the pack every time since new and all the cells read withing .01 voltage on the balance screen.

[RC Accessory]

One of my TP 3s 2200 packs seems to take longer and longer to charge. Last charge time was around 80 minutes and I'm only putting back around 1400MAH. Its the last part of the charge that is taking the time, it sits at .1 amp for about 30 to 40 minutes. The time seems to be getting longer and longer and the pack has about 50 cycles on it. Whats the deal here, is it dying?

BTW, I'm using a BC8 and have balance the pack every time since new and all the cells read withing .01 voltage on the balance screen.

Yes, unfortuneatly it is the pack. The e-Station chargers will continually test the pack in the CV stage to see how much more the pack can take. What happens is that the charger will have a load on the battery in the CV stage and then drop the amperage to 0 amps. If you watch the individual cells when this happens, you will see 1 or more cells drop and the pack will have an imbalance. The charger will then kick up the charge rate by 100-200 mah and get the cells back in balance. That is why it is taking so long.

What you can do is use the "fast charge" program. This will extend the CC portion of the charge and not go into the CV portion of the charge. The pack will get about 95% charged this way. The balancing function is still active in the fast charge program.

I had 1 customer have this issue on a DN 3S pack and swore the charger was defective. I had him send me the charger as well as his 2 packs. The same thing happend on my BC-6 and BC-8. I spent nearly 2 hours just watching the cells and saw what the charger was doing.

Regards,

[EBCooper]

Yea, I figured it was the battery although the battery is not puffed and still puts out like it was new.