RaV3N

I have a Tunigy charger and I can set the current charge between .05A-5.0A . What should the current be set at.

loopedeloop

1C would be 6.5A so 5A from your charger will be fine.

RaV3N

Will it charge the battery completely

CarbonJoe

Yes. It just takes longer at the lower C rate.

RaV3N

how long do you think it will take?

CarbonJoe

Too hard to say, it really depends on how far you've discharged it. Anywhere from 15 minutes to 1 hour or so. If it was fully charged and you ran a 5 minute heat in 17.5 touring car, you'll probably use about 1500 - 1800 mAh.

RaV3N

Well the battery is brand new? So im guessing it doesnt come with a charge?

CarbonJoe

It had better have a partial charge (probably around 7.0 volts). A LiPo is fully charged at 8.40 volts. You shouldn't discharge a LiPo much below 6.4 volts (3.2V per cell) or you can do irreversible damage to the pack. Plug it in and charge it a 5A. The current will ramp up until the pack hits 8.40V, then the current will drop slowly until around 0.10A. Some people say it's charged as soon as it hits 8.40V, but there could still be a few hundred mAh still left to go. The last 10-15% of the capacity takes the longest, since the current is lowest at that point in the charge cycle.

loopedeloop

If charging from flat expect it to take about 1 1/2 to 2 hours