21700 Lipo 3.7V 5000mAh Battery

The INR21700E 5000mAh Lipo battery and can delivery a formidable 9.8A and a Puls Discharge current of 35A for 10 seconds. We have gone out of our way and tested a wide range 21700 Lipo batteries samples from different suppliers and only a handful suppliers met the advertised specification. Our 21700 battery is supplied by a SAMSUNG OEM partner and has a Energy Storage Capacity of 18.5Wh (5000mAh). We found it to be consistent and a great performance battery. The 21700 format was jointly designed by Tesla and Panasonic and offers a 20% better power density than 18650 batteries.

Quick Spec

  • Max Capacity: 5000mAh
  • Min Capacity: 4800mAh
  • Energy storage capacity: 18.5wH
  • Nominal Voltage: 3.6V - 3.7V
  • Charge Voltage: 4.2V
  • Max. Current Output Constant: 9.8A
  • Max. pulse discharge current 35A for 10sec
  • Standard Charging Current: 1440mA
  • No Protection Circuit
  • Positive Pole (structure): flat top
  • Dimensions: 21.5 x 71mm
  • Net Weight: 69g
Important Calculations for Battery Projects

INR21700-E-CAL3
Converting between Amp-hours and Watt-hours

Energy in batteries are specified in Watt hours (Wh) (see image above), but more commonly express in amp hours (Ah) for doing calculations. 

Formula : E = V * Q

  • E : Energy stored in Battery measured in Watt Hour (Wh)
  • V : Battery Voltage (V)
  • Q : Battery capacity, measured in Amp hours (Ah)
Example : How to calculate milliamp hour (mAh)  from Watt hour (Wh)

  • E = 18.5wH (Specified on the battery)
  • V = 3.7V
  • thus Q = E / V
  • Q = 18.5 / 3.7V
  • Q = 5Ah   (5000mAh)

Resources

Shipping List

  • 1 x INR21700E 3.7V 5000mA Lipo Battery


Lipo Battery 5000mAh, 21700 Standard, 3.7V

  • Product Code: INR21700E
  • Stock

    Warehouse Stock Status Location
    Centurion Limited Stock US13-US16
    Stellenbosch In Stock 538

    We ship free of charge between branches to complete your order.

  • R118.00 (Inc Tax: R135.70)


  • 4 or more R105.00

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Tags: INT21700E, 21700, Lipo, 3.7V, 5000mA, battery