3 of my 4 600mah packs went way out of balance 2 weeks ago, eos0606i wouldn't do anything for them on it's own. Made a harness to connect from balance tap to main charge leads and did a 1A discharge on the cell with higher voltage and checked it every few minutes till it was close. Now I have a few more runs on them and they seem to be doing ok. Just running hot in the E-REVO battery compartments.
12 posts and already off topic