Battery 12V 21.43 W/cell – 7Ah. Maintenance-free VRLA type. T1/F1 connector. Life 3-5 years at full and partial charge. Low self-discharge rates – 2% per month. More than 500 charge cycles at 100% DOD. ABS housing. Capacity at temperature 40ºC/25ºC/0ºC – 103%/100%/86%. Charging 14.4V – 15V, maximum current 1.8A; Dimensions: 151 x 65 x 94 mm, 1.8kg.