I have been using 2 x Foxtech 5000mah 6S battery packs in series for my board. I have been charging each pack individually with a 6s B4AC pro charger.
Both packs have been fine for a couple of weeks now with regular usage.
Up until the other day, First 6S battery pack charges up fine but the second one no longer charges fully. It took ages to charge and I kept on getting “Vol Sel Err” as I tried to charge it.
I tried balance charging the lipo but it kept on giving the same “Vol Sel Err” error. This is a 6s Pack and I had it selected as 6S on my charger.
When I connect the balance lead to the charger it says something along the lines of “R.5 S.6” if I remember correctly?
This leads me to believe my 6S is being read as a 5S battery ?? The maximum voltage I can get in the pack is 20.8V.
So… I connected a low votage alarm to check the cells, cells 1 - 5 were all ok but cell six gave “A.SS” reading, I can’t find out what this means ?
Can anyone give me any advice please?