I just got a accu-cycle elite charger and it was explaining the charging process and it said that 1C is the rated mAh rating ex) if you have a 900 mAh 1C would be .9 amps. Then you can take that times the rated burst C rating to see how many amps you can draw. That is what I understand from the manual. Yea mAh is how many mA you can draw for one hour. So the more you have the longer it can last.