Quote:
Originally Posted by lincpimp
Interesting, I have a really nice automotive charger at the shop, all digital. It has a 6v setting too... Maybe I should try the 2s pack on that? HeHe, it can do 60 amps... What does that work out to, 13+c....
Maybe stick to the 20 amp setting, that should still do the job in 15 mins. I am sure some of the plane guys will try a 3s pack with the "zip charging" method. That is basically a 12v power supply (A big one that can be set) and a certain length of certain gauge wire to limit the current. One guy was charging the 2300 cells in 3 or 4 mins....And had hundreds of cycles as well.
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The 6 volt setting should work fine for 2S.
Recommended charge cutoff is 3.6 volts per cell.
I opened up my "Black and Decker

" automotive charger and soldered a "little" 16 Ga. lead directly to the outputs on the board.
The cells topped off right at 3.55 volts per cell. Slight Calibration error, or added resistence in the lead? Not sure, but it works perfectly.
My advice is, make sure your charger terminates charge on the 6 volt setting at 7.2 volts or less and you're good to go.
Wait a second! I'm sure if you "surf" the net, you could find a "GREEN" Lifepo4 charger for $567,789,234 Gazillion dollars!
It's the BEST too! Much better than all those other "reject" chargers!