[XLR8]

i have a couple gp 3300 matched packs. 2 are older (about 1 year) and 1 is brand new.
They all have good specs.
the 2 older ones are loosing their punch and you can tell which one is new and old by running them.
What are some things i can do to help revive the 2 older packs and give them great punch. Iv tried cycling them on my charger (duratrax ICE).

im out of ideas

thanks
adam

[TriggerHappy]

I'm not the expert..but here goes what I think...maybe this will spark a correction and get you an answer better than mine

Your batteries are using chemicals which will break down with use and time. I don't 'think' "Reviving" them is possible beyond a fresh recharge.

[TEM]

Reviving cells? Depends on how much damage is done. But clearly the newer cells and new batches of cells will have more punch, naturally. Theres a couple things you can try; 1 dead shorting the cells (discharging to nil then putting wires across + and - of EACH CELL and NOT the PACK). Other method is zapping the cells.

Realistically, play with them a little. If it don't work, buy new packs. New batts, if you know where to get them are ALWAYS good!

[Abiye]

there is a mode on the ice called reflex or something like that... i have one but never used it... its supposed to bring old cells back to life... check the manual and give it a try

[speedygonzales]

I have a battery clinic website I found. I will send it to you when I am out of school. it helps you reviv your batts i think.

[endler]

DO NOT FLEX CHARGE NICADS!! ok what you do is put them on a discharge tray to square them up (kill the pack)....then put a wire in between the positive and negative when the discharge is done let them sit like that for awhile...try and cycle the pack a few times and it should help with your punch but you may loose some run time......if the pack is really bad i throw it off the table (not enough to damage) but enough to give it a shake up inside (shakes the plates up ) but dont do it if the battery comes back with the other method above...you should only dead short gp cells any other cells will have a negative affect and you may ruin them....http://www.canadarc.net/forum/viewfo...0b3fd04c46btry this link hope it helps...

[speedygonzales]

AHHHH sh*t

im sorry exams are going and i forgot!
http://www.rcbatteryclinic.com/

i hope that helps you with your batts.