RE: computer Power supply
Hi,
One thing you may want to consider is to adjust the power supply voltage to 13.6 volts, not 12 volts, usually the power supply will allow you to adjust for this. Car batteries run at 13.6 volts and this is what most chargers are expecting.
Example, if you are charging a 3 cell LiPo pack, the charge expects to bring them up to 12.1 volts (sometimes a little more), if the supply to the charger is only 12 volts, it can't get to full charge and you may experience problems which you may blame on your charger.
Something you may want to consider.
Fly4Fun,
Wayne Miller