Charging a single 18650 cell in a batterypack?

[edrift.eu]

I would like to know the capacity of this battery. It has 40 samsung ICR18650-22 (2200mah?) cells which are all exactly 4,16V. The battery is a 36V8.8ah which has dropped from 50% of original capacity to about 15% during the last 6 mounts.

1. Can i check each cell WITH all the nickelpads still connected or do i need to remove each battery to test their capacity?

2. I have an iMax B6(limited to 8 cells or 22V) so i would like to test just one cell to see how much capacity in ah is has left. Since they are connected in block of 4 they are most likely 2200ah in capacity. Can i connect my imax like this to test ONE cell or will it test all FOUR in this block.

3. Also can i charge/discharge these ICR (I = Lithium, C =cobalt , structure = LiCoO2) on the Lipo mode? They seem to have the same charging and discharging voltage?
http://eldrift.nu/temp/cell.jpg

 

[Hillhater]

You can test each group of 4 cells without breaKing any connections.
Or you could put the whole 36v pack under load and check each 4 cell group to see which one sags the most voltage or hits lowest voltage first.That will likely be the weakest group with a bad cell

 

[999zip999]

How have you been using the pack. Your setup controller and motor. Yes you can use lipo setting. One bad cell will weaken the parallel string weaking the whole pack.