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Powerstorm 12.8-20Ah (12.8V, 20AH)

Features of LiFePO4 Battery                                    

Longer cycle life: Offer up to 20 times longer cycle life and five times longer float/calendar life than lead acid battery, helping to minimize replacement cost and reduce total cost of ownership.

Lighter Weight: About 40% of the weight of a comparable lead acid battery. A "drop in" replacement for lead acid batteries

Higher Power: Delivers twice power of lead acid battery, even high discharge rate, while maintaining high energy capacity

Wider Temperature Range: -20°C~60°C

Super Safety: Lithium Iron Phosphate Chemistry eliminates the risk of explosion or combustion due to high impact, over charging or short circuit situation.

Increased Flexibility: Modular design enables deployment of up to four batteries in series and up to eight batteries in parallel.


  Nominal Voltage 12.8V
  Nominal Capacity 20AH
  Energy 256Wh
  Internal Resistance 50mΩ
  Cycle life >2000 cycles at 0.2C 100% DOD
Electrical Characteristics Months Self Discharge <3%
  Efficiency of Charge 100% at 0.5C
  Efficiency of discharge 96~99% at 1C
  Charge volt 14.6+/-0.2V
  Charge Mode CC at 0.2C to 14.6V, then  at CV14.6V to charge current less than 0.02C
Standard Charge Charge Current 10A
  Max. Charge current 20A
  Charge cut off voltage 15.6V+/-0.2V
  Continuous Current 40A
Standard Discharge Max. Pulse Current 50A (<3s)
  Discharge Cut-off Voltage 8V
  Charge Temperature 0°C to 45°C (32F to 113F) at 60±25% Relative Humidity
  Discharge Temperature - 20°C to 60°C (-4F to 140F) at 60±25% Relative Humidity
Environment Storage Temperature 0°C to 40°C (32F to 104F) 60±25% Relative Humidity
  Water Dust Resistance IP56
  Cell & method 26650  4S6P
  Plastic Case ABS
  Dimensions (in./mm) 181*77*167mm (7.13"*3.03"*6.57")
Mechanical Weight (lbs./kg.) 2.7KG (5.958 lbs)
  Terminal T3
  Protocol (optional) SMBus /RS485/RS232
  SOC (optional) LED