No this has nothing to do with the charger, or being on concrete, etc.

The battery pack that Hobbico sells is not up to the demands of the starter motor.


I've burned through several myself in only one season of use each.

IMHO the small Lead/Acid batteries are too small and because of that a POS.


The racing packs connected together not only last far longer, but produce considerably MORE sustained torque.

The higher capacity packs also retain more charge for longer periods of time.

It is not unusual for me to charge my starter packs only once a month, even after 18+ starts a day each weekend.