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LiFePO4 18650 Rechargeable Cell: 3.2V 1250mAh, 21A Rate, 4Wh - K2 Brand - UN38.3 Passed

Your Price: $8.95
In Stock

Product ID # 4789
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Quantity Discounts

5 to 20$8.68
21 to 50$8.50
51 to 100$8.32
101 or more$8.05
Nominal Voltage        Average 3.2 - 3.3 V
Nominal Capacity                 

     1250mAh ( at 0.2C rate, 3.8V cut-off) ,   Energy density:  98.76 wh/kg

Max.Charging current      1.5 A Max.
Max.Discharging current
  • 21A Max. continuous
Dimensions (DxH) (max with tab)      18.3 mm (Max 18.4) x 64.9 mm (Max 65.1)
Weight      40.5 g
Operation Temperature
  •  Charging:    0 - 55 oC
  •  Discharging:  - 20 - 60 oC
Cycle Performance
  •  >2000 (80% of initial capacity at 0.2C rate, IEC Standard) 
  • 2 times more than NiMH  and 10 time more than SLA
Detail Data Sheet   Please click here to download specification.
Smart charger

You can choose Smart Charger (0.7 A) for 3.2V (1 cells) LiFePO4 Battery Pack, 100-240VAC, CE listed to recharge LiFePO4 battery pack



  • Don't use NiMH or Li-ion smart charger charge LiFePO4 cell/pack.
    • Wrong type of charger used will cause cell to explode.
  • The cell come with removable paper insulator.
    • Please don't remove it while DIY.

  • LiFePO4 battery must be cut-off at 3.8V/cell when charging
  • You must limit discharging rate below Max rate
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

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