Delivering power when you need it, the Mighty Max ML35-12 12 Volt 35 AH Internal Thread uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.. SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. 12V 35AH SLA Internal Thread Replacement for Panasonic LC-X12V33AP Rechargeable battery that can be mounted in any position, resists shocks and vibration.