Topic: Battery Killer

[blu666z]

I bought 2 sets of PowerX batteries(AA 2200mAH) from Thomas Dist a while.  I had one battery that went bad a few months ago.  They sent me a replacement for it.  Go to charge a set up last night and I have another dead one.  Swapped them around to isolate the bad one.  Has anyone else experienced this?  Could I be frying them somehow?

-Kevin

[Brian Skalinder]

After a couple years of regular use (in both taping and home gear - remotes, wireless game controllers, etc.) I've had 2 Powerex AAs go bad out of about 24 or so.  I just wrote 'em off, but maybe I should drop TD a line to see if they'll send me replacements.  Hmmmmm...

I know I'm not much help, but wanted to share a similar experience.  Rechargables aren't perfect, and I've gotten far more dead or near-dying brand-spanking new alkalines in my time than rechargables, so I don't sweat much the occasional dead cell.

[Brian Skalinder]

Moke, I've been doing the same cycling lately and it seems to help them stay fresh.

FWIW, my bad cells were b-a-d, as in no voltage whatsoever and absolutely no response on the charger in either the discharge or charge cycles.

[blu666z]

Run  it through the deep cycle discharge and recharge mode.

Problem being, I can't.  The charger is do 2 sets of 2 batteries each.  Normally when you put the batteries in the light will go red....hit discharge and it will flash yellow.  When I have this dead cell in either slot the light will not come on at all.

-Kevin

[F.O.Bean]

sorry to vear the thread a lil, but should i deep discharge my NI-MH batts every once in awhile, say every six months???theyre 9.6v 1600mah rc batts

i also have a 1000mah thats a mi-cd tho, i know i have to discharge those fully everytime tho right??

thanks,
  bean

[caymanreview]

i deep disharge my 9.6v 3000mah nimh every 5-7 partial cycles just to be safe

nicd must be fully discharged i believe

[F.O.Bean]

i deep disharge my 9.6v 3000mah nimh every 5-7 partial cycles just to be safe

nicd must be fully discharged i believe

thanks dustin, exactly what i needed to know

[BobW]

Deep - cycle charging may not be needed with the right charger.
I'm trying to find the whitepapers, was on an old Hard Drive.........