I just purchased an E-flite apprentice and it comes with a LiPo charger with only alligator clips as a hookup. So I also purchased a rechargable Hangar9 12Volt 7Ah battery (han102) to supply the power to my LiPo Charger.

I have 2 questions.

1st. Roughly how many times I can charge my 3 cell 3200mAh 11.1V LiPo Battery using this 12Volt 7Ah battery source before the 12Volt Battery is depleted and would need recharged again?

2nd. I have a good volt meter with a lot of options. I know that if I switch it to vdc, I can get a reading off the battery to see it at about 12.77 volts. Is there a way to use a volt meter to see roughly how much capacity is remaining in the battery to know when its full, half or empty?