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PANASONIC-SANYO 20700B Lithium Rechargeable Cell: 3.6V 4250mAh (15.3Wh, NCR20700B) - UN38.3 Passed -

With Tabs
Your Price: We do not sell single cells.

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  • NCR 20700B
  • Nominal Voltage: 3.6V
  • Charging Voltage: 4.2V
  • Nominal Capacity: 4000 mAh
  • Typical Capacity: 4250mAh
Standard Charging Current 2A
Max Continuous Discharging Current 12A
Discharge End Voltage 2.5V
Temperature Charge: 10 to +45ºC
Discharge: -20 to +60ºC
Storage: -20 to + 50ºC
Energy Density Volumetric: 659 Wh/l
Gravimetric: 224Wh/kg
Dimensions With tube-wrap (LxD) 70.3mm(2.77") x 20.35 mm(0.8")
Weight 63.0g (2.2 oz)

Please download the Specification here

  • Please download the product specifications


  • Li-Ion Batteries may explode if charged or discharged improperly.
  • Please possess knowledge of electronic and understand hot to handle Li-ion battery.
  • We reserve the right not to sell and void the warranty it you don't meet the above statement.
  • Please use a protection IC (PCB) to keep battery from overcharge and over discharge
  • Never solder directly onto the Li-ion battery as overheat might cause battery to explode. If you are making a pack or need to solder batteries together, you need to get battery with tabs on it. You will solder to tabs instead directly onto the battery.
  • Please read more safety warning about Li-ion battery
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

  • For DIY, please add tabs as an option at a little extra cost
  • Our battery packs build by 20700 cells.
  • Need to DIY?  Please install our PCB or your own PCB withthe following features:
    • 4.2V/cell over-charge protection
    • 2.5V/cell over-discharge protection
    • Max currentover-drain protection
    • Shortcircuit protection.
  • Batteryspace.com is NOT liable for any misuse due to any other brand of PCB applied
  • If you don't know how to make Li-Ion pack, please don't DIY, click here to choose a pre-wired Li-Ion pack module from 3.7V-37V

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UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
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