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› a trick for "Air Thunder" batteries
11-28-2007 07:16 PM  9 years agoPost 1
coptercptn

rrElite Veteran

Mesa AZ. USA

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I had this problem... and through a (long) conversation with Mandy at Air Thunder we came up with a fix...
When you discharge the A-T packs below 3.5V per cell (And you can) a problem arises with most battery chargers. They do not recognize the pack as a 6S pack any longer and usually will not try to recharge them. A few of the better chargers will try to charge them as a 5S pack and that sometimes works to get the voltage up and then they will re-charge at the 6s rate...but most won't, and it is frustrating.

So, short of going out and buying an expensive charger (the Bantam e-station BC-8 and Thunder power 1010c will both recharge with out any problems)here is a quick and easy trick:

All you need is a battey combo that will equal the 22.2 volts of the 6s pack. I use 2- 3s packs with a series connector. Then all you do is connect the source battery to the (Over)discharged pack for no more than about 45 seconds. Make sure you have the poarity set for Positive to Positive, Neg. to neg. This will effectivly bleed enough voltage into the pack that now it can be re-charged with any charger.

I made up a "special" Deans plug that is setup for +to+ -to- that just plugs in to the battery pack.

I'm passing this info on as I have found out a few folks have bought the A-T packs and wanted to get rid of them because they could not re-charge them...

Jim

Home of the "Sea Cobra".....

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