Powersonic PS-640F1 - 6 Volt/4.5 Amp Hour Sealed Lead Acid Battery with 0.187 Fast-on Connector;

Absorbent Glass Mat (AGM) technology for superior performance. Valve regulated, spill-proof construction allows safe operation in any position. Power/volume ratio yielding unrivaled energy density. Rugged impact resistant ABS plastic (UL94-HB) case and cover. Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certified. U.L. recognized-MH 20845. Compatible Part Numbers: V/AH 6/4.5, universal UB645/D5733, CSB GP645, Enersys NP4-6, B BP4-6, GS Battery PE6V4.5F1, D LP6-5. Specifications: Terminal Type: F1. Nominal Voltage: volts (3 cells). Internal Resistance: 40-45 milliohms. Max Discharge Current (7min): 13.5 amperes. Max Short-Duration Discharge Current (10sec): 45 amperes. Dimensions: Length: 2.76". Width: 1.76". Height: 4.25". Weight: 1.6 lbs. (0.73kg).