Mighty Max Battery Replacement Chamberlain 4228 EverCharge Standby Power System brand product ML5-12 SLA is a 12V 5AH Sealed Lead Acid (SLA) rechargeable maintenance free battery Dimensions: 3.54 inches x 2.76 inches x 4.21 inches. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included. SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures Backed by a 30 day refund policy and full 1 year warranty