hi, here is a schematic of a li ion battery charger and it is currently configure to charge 1 battery between 4.08v to 4.26v at 100mA. would this same setup be able to charge 3x3.7v 880mAh battery in series? i was thinking of just changing some of the value to equal the amount i need. anyone can advise me of it is a good idea or what is the best way to acomplish this? also will it still work if i use a cheaper regulator like a LM317 or equivalent?