ESTIMATED RUN TIME: The MR86 will power a 45lb motor continuously for: 4.4 hours at low speed, 2.7 hours at medium, and 0.9 hour at max speed 12V 50Ah; Reserve Capacity: 100min ; Dimensions: 7.8"Lx6.6"Wx6.7"H (Height includes terminals) Weight: 32lb Maintenance Free Operation: There is no need to check specific gravity of the electrolyte or add water to VMAXTANKS. Can be mounted in any position Rechargeable Sealed battery resists shocks and vibration. High performance AGM technology for long lasting reliable power Warranty: 1 Year replacement; 30 day satisfaction guarantee