Main Features: Over 10 Years Service Life>4000 Cycles 5 Years Warranty IP65 Protection High Speed Charge and Discharge No Memory Effect Environmental Protection:Lead-free,acid-free The Smart BMS:provides comprehensive protection for the battery and intelligently managers the charge/discharge process.Overcharge protection/Discharge protection/Overvoltage protection/Active Balancer/Charge Control/Battery Temperature Protection Specification: Capacity:20Ah Power:256Wh Voltage:12.8V Weight:2.3KG Size (mm):181x77x170 Charge Temperature:0℃— 55℃ Discharge Temperature:-20℃— 60℃ Same brand and capacity can be used in series and parallel connection. Please ensure that the batteries are charged to the same voltage before using them in series and parallel connection.
eBay