Originally Posted by mattnin

Stay away from A123 if you can. You really can't charge faster than the newer lipos and you can't even discharge higher than the newer lipos too. The only benefit to A123 is that they have a safer technology. The A123 battery has a lot of cons, it has a lower voltage which means it won't run well in stock class, it doesn't fit right in standard battery trays, and they are expensive and A123 has poor customer service (non-existant). So hope you don't get bum batteries or charger.