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LiFePO4 26700 Rechargeable Cell: 3.2V 4000mAh 12.8Wh - UN38.3 Passed & IEC Listed -

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Product ID # 5877
Part Number:


Nominal Voltage   3.2V
Capacity                  Nominal: 4000mAh @0.5C, 25±2°C
Minimum: 3960mAh @0.5C, 25±2°C
Charge Voltage Maximum 3.65V
Discharge Cut off Voltage Minimum: 2.0V
Charge current
  • Standard: 0.5C(2A)
  • Maximum: 1C (4A)
Discharge Current
  • Standard: 0.5C(2A)
  • Maximum continuous: 2C(8A)
Internal Resistance
  • ≤20mΩ, AC 1KHz
  • ≤35mΩ, DC 25°C, 50% SOC, 2C(8A) discharge 10s
  • Charging: 0 - 55 oC
  • Discharging: - 20 - 60 oC
  • Storage: -20 to 45oC (< 3 months); -20 to 25oC (< 1 year)
Dimensions(DxH) (max with tab)
  • 26.4±0.2mm x 71±0.2 mm
Weight 3.3 OZ / 93 g

Please download the Specification here


  • Use LiFePO4 charger only to charge LiFePO4 cell/pack.
  • LiFePO4 battery must be cut-off at 3.65/cell when charging and cut off at 2V/cell when discharging
  • You must limit discharging rate below Max rate
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

Other battery packs build by LFP-26700-4000 can be found here.

Product Reviews

(1 Rating, 1 Review) Average Rating:
The products are as-advertised
cropi (Woburn, MA) 6/27/2012 3:37 PM
It was excellent. They delivered the custom batteries on time. The products are as-advertised.
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We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

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