Sanyo NCR 20700B // 20700 4000mAh 15A

$15.60 Regular price $24.50

"Sanyo 20700B 4000mAh 20700 Bench Test Results...a peek at the future?

 This Sanyo is one of the new generation of slightly larger cylindrical cells being brought to the market primarily for automotive use. It is 20mm in diameter and 70mm long, a 20700 battery. Other sizes and designations for similar cells from other manufacturers include 20650 and 21-70.

I am rating this cell at 15A 4000mAh. It runs a few degrees hotter than the HG2 but at 10A and 20A continuous down to 3.2V the Sanyo lasts about 25% longer."

- Mooch

  • Nominal Capacity: 4000mAh
  • Nominal Voltage: 3.6V
  • Maximum Voltage: 4.2V
  • Discharge Current: 15A Maximum Continuous Discharge
  • Approximate Dimensions: 20mm x 70mm
These are high capacity and high discharge current batteries. If mishandled/mistreated they can cause serious injury. Use at your own risk.


  • Always store batteries in a battery case.

  • Never expose batteries to heat.

  • Do not use if plastic wrap has any signs of damage.

  • We recommend always using an external charger.

  • Only ever use in conjunction with similarly aged batteries of the same model.

Battery safety and care is extremely important. For more information, please refer to our battery safety guideline here

Customer Reviews

Based on 1 review
Shane P.

Yep good so far

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