Mighty Max Battery 12V 50AH Battery for Permobil M300 PS JR Power Wheelchair Brand Product Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures. SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. Dimensions: 7.22 inches x 6.50 inches x 6.89 inches. Listing is for the Battery and Screws only. No wire harness or mounting accessories included. ML50-12 SLA is a 12V 50AH Sealed Lead Acid (SLA) rechargeable maintenance free battery. Backed by a 30 day refund policy and full 1 year warranty.