WE640-6V4AH Lead Acid batteries

WE640-6V4.0AH ★ Specifications: ＊ Nominal voltage: 6V ＊ Number of cell: 3 ＊ Design life: 3 to 5 years ＊ Capacity: 4.0Ah ＊ Weight: 0.68kg (approximately) ＊ Internal resistance: 25mΩ (full charged at 25℃) ＊ Self discharge: 3% of capacity declined per month at 20℃ (average) ＊ Operating temperature range   — Discharge: -20 to 60℃   — Charge: -10 to 60℃   — Storage: -20 to 60℃ ＊ Maximum discharge current (25℃): 60A (5 seconds) ＊ Short-circuit current: 200A