fq06

iTrader: (12)

What C rate does the manufacturer web site say you can charge them at?
1C? 2C?
Multiply the C rate by 5.8.
Example: if 2C, then 11.6 amps.

bertrandsv87

iTrader: (2)

5.55C seems to be the way to go.... 5.8C is good too....

fq06

iTrader: (12)

5.55C would be a 32.19 amp charge rate on a 5800 mah pack.
(5.55 x 5.8)

bertrandsv87

iTrader: (2)

Yes 32amps, and the time it takes to fully charge from a discharged state should be between 12 and 14 Minutes... If it takes less than 12Minutes to charge, then lower the amperage, and if it takes more than 14 Minutes to charge, increase the amperage.... If your equipment can't do 32 amos, than charge at close to max possible amperage....

fq06

iTrader: (12)

And if the lipo can only take a 2C charge, better have the fire department on speed dial

I am not familiar with that lipo, maybe it can take a 6C charge?

fq06

iTrader: (12)

From A Main...
Maximum Charge Rate: 2C (11.6A)

And his power supply is 20a and you don't want to pull more than about 90% of what its rated at max.

bertrandsv87

iTrader: (2)

I thought you guys were using the Tp 6c+ lipos...

bertrandsv87

iTrader: (2)

With a 2c limit, I would not charge over 8amps...

Mr RCTech

iTrader: (2)

12 Amp charge rate is the magic number...
Discharge at 30 amps to put a little heat into the cells, then charge.

Tanis103

iTrader: (8)

Thanks guys, just got back from the track.
1st, charged at 12 amps, took 19 mins, battery was not warm.
2nd, charged at 12 amps, took 18 mins, battery was not warm.
3rd, charged at 15 amps, took 14 mins, battery was not warm.

I'm happy with this, it use to take 50 to 55 mins to charge my pack at 5 amps on my Venom charger after a 6 min heat.

bvoltz

iTrader: (44)

What is interesting for me is with the icharger I'm not able to discharge more then 19.2 amps, I can set the icharger to 30 or more, but the battery will not give up more then 19.2... It is 100c Revtech....

fq06

iTrader: (12)

If it's anything like the PowerLab you need to connect to a car battery to get that high of a discharge rate.

bvoltz

iTrader: (44)

I'm using a 47amp Power supply.....

hyujmn

iTrader: (27)

I've read that you need to supply 20-24v instead of the standard 12v a server PSU supplies. Don't know how true that is bc I don't have any of those chargers, but I know some people that use two PSUs in series for 24v

Mr RCTech

iTrader: (2)

Did you notice that the IR went down really low.

Seems to me that if the battery gets too hot IR increases or to cold IR
increases.
8-9 degrees above ambient temperature is key.