Mighty Max Battery 12V 55Ah INVACARE PRONTO M50 M6 M71 M91 M94 R2 R51 LX Battery - 2 Pack brand product ML55-12 SLA is a 12V 55AH Sealed Lead Acid (SLA) rechargeable maintenance free battery. Pack of 2 Dimensions: 9.02 inches x 5.43 inches x 9.13 inches. Listing is for the Battery and Screws 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.