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Type:   Pack          
Chemistry:  Li-ion     
Nominal Voltage (V):12v  
Capacity (mAh): 50000   
Max Continuous Discharge Current: 50A   
Max  Discharge Current:  50A  
Battery Charging Current: 5A
Weight: 8kg             
Dimensions:  40*35*35
Avg. Temperature Ranges for    
Charging: <55℃
Discharging: 45℃
Storage:25±5℃
PCB/Pack Protection(for single cell voltages):  
Over Charge Cutoff Voltage: 4.35 ± 0.025V  
http://www.ameecbattery.com