Turnigy LiFEPO4 packs

[lutach]

Originally Posted by suicideneil

Make sure someone shoves all this info under Jason's nose on whatever forum hes lurking on, love to see what his responce will be, if any. When he refuses to issue his own graphes and charge/discharge data, it'll be plain as day that MA are all mouth & no trousers...

MA could've done something like this: http://www.rcgroups.com/forums/showthread.php?t=1078049, but I think the MA boys don't know how to hack the graphs to make them look good and that's the reason they don't post anything. Here's a thread with good results so far: http://www.rcgroups.com/forums/showt...1143540&page=2.

sikeston34m post your info there and call out the MA guys to see what they can say about the reject cells .

[sikeston34m]

Originally Posted by lutach

MA could've done something like this: http://www.rcgroups.com/forums/showthread.php?t=1078049, but I think the MA boys don't know how to hack the graphs to make them look good and that's the reason they don't post anything. Here's a thread with good results so far: http://www.rcgroups.com/forums/showt...1143540&page=2.

sikeston34m post your info there and call out the MA guys to see what they can say about the reject cells .

Those guys are watching this thread. That's why they accused you and BN of playing games between there and "another" forum.

It's because they are watching this thread and the "60C really?" thread.

They are alot of "Talk". The proof is in the pudding.

That's why we should put these packs up against their "Green" packs on legit discharge equipment. Or at least an Eagletree running the same setup.

I really enjoyed seeing the discharge graphs in the link you posted Lutach.

I do believe these are holding voltage above 3.0 - 3.1 volts per cell right up to the very end. The discharge curve is VERY flat and at the end they drop suddenly.

I'm tempted to setup my E Revo with these also, then buy another Automotive charger.

Picture two Monster Trucks geared for 40mph, being charged in less than 10 minutes, only to do another 30 minute run.

It's a play all day kinda setup.

[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.

[sikeston34m]

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.

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!