I have 4 8 cell 1400mah 9.6V battery packs. Some of these batteries seem very weak and will not even power my brushless motor for more than 10 seconds before slowing down. When charging some of them after a complete discharge it says it only reaches 100mah. One of the packs seem to work fine. Are the batteries just faulty or something?

have you 'form' charged them at all?

kc

I do not know what that means so probably not.

NiMh batteries need to be Form Charged the first few times they are charged, this is accomplished by charging at C/10 for 16-24 hours or till the battery starts to get warm. if you do not form charge them they'll false peak when used with a peak detector and never achieve their designated capacity.

over time and many cycles they can be form charged to help bring them back up to par when they seam to just not put out what they once did, often it'll bring them back to full capacity and you can go back to quick charging/peak detecting.

kc

ok thanks i did not do that so that is probably why. I will try to do that a few times.

that should defiantly help.

kc