At what battery per cent do I recharge to maximize battery life?
I've heard that new Lithium batteries do not have the "memory" issues of old Ni-Cads; but to maximize my battery life overall should I run on battery power until warned; until down to 25%/50%; or does it matter at all. Machine is a 15" MacBook Pro with retina display at 2.7 GHz w/ 16 GB running OS X 10.8.