The ML4.5-4 SLA is a UL Certified 4V 4.5AH Sealed Lead Acid (SLA) rechargeable maintenance free battery. It measures 1.89 inches x 1.89 inches x 4.25 inches and has an F1 terminal. This listing is for the battery only and does not include wire harness or mounting accessories. The SLA / AGM spill proof battery has a high discharge rate, wide operating temperatures, and long service life. It can be recharged and mounted in any position, and is resistant to shocks and vibration, with long-lasting high performance in high and low temperatures. Comes with a full one year warranty.