Welcome back! We saved your shopping cart for you: View Cart

Sanyo NCR 20700 4200mAh 3.7V Unprotected High-Drain 15A Lithium Ion (Li-ion) Flat Top Battery - Boxed

Sanyo NCR 20700 4200mAh Li-ion Battery  alternate view 3
Click to Enlarge Image
  • Incredible 4000mAh capacity provides the longest runtimes for even the most energy-hungry devices out there.
  • 15A drain is ideal for high-drain devices like turbo-featuring flashlights and electronics that require pulse discharging.
  • Flat top design saves on length, and makes these Sanyo NCR20700B cells perfect of building battery packs and DIY power walls.
  • NCR Li-ion chemistry features some of the best chemistry on the market, release a continuous, stable stream of controlled power.
Everyday Low Price: $7.95
Sale Price: $6.75 (15% Off)

Offer valid while supplies last | Can not be combined with any other promotions

Save 15%
| Reg. Price $7.95
Usually ships the next business day
Battery Junction Wholesale Account Signup
Battery Junction Free Keylight On Purchases Over $20 Promo

Sanyo NCR20700B

15A High Drain, Flat Top 20700

The Sanyo NCR20700B is is a li-ion 20700 battery that can be recharged 500+ times. It features a very large 4,200mAh capacity, as well as a 15A max continuous discharge rate for high-drain devices.

This is an unprotected cell with flat top terminals, and is recommended for use by manufacturers in creating OEM battery packs.

Rechargeable & Reusable

Invest in a rechargeable battery that will last for years to come– this battery can be recharged 500+ times.

High Discharge Rate

15A max continuous discharge rate for high-drain electronics, great for making battery packs for devices that require minimum discharge rates.

3 Year Shelf Life

Stock up and store spare batteries with confidence– lithium ion batteries have a 3+ year shelf life, ensuring you always have a fresh replacement when you need it.

Notable Features

» Huge 4,200mAh capacity offers long-lasting runtimes for all your devices
» Flat top terminal is perfect for use in making OEM battery packs
Please note that these batteries have flat top terminals, and may not be compatible with some devices.


Unless equipped and 'protected' with a PCB (protection circuit module) and/or similar device, lithium ion (li-ion) rechargeable battery cells are not recommended by BatteryJunction.com or our parent and associated companies, or the respective manufacturers, as a stand-alone product. Misuse of lithium ion rechargeable battery cells can pose a serious risk of personal injury or property damage.
Battery Size:20700
Battery Capacity (mAh):4200
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Flat Top
Battery Shelf Life:3 Years
Packaging:Contractor Pack
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:2.222oz
Product Dimensions:2.768" (L) x 0.801" (Diameter)
Country of Origin:Malaysia
2 Reviews
100% (2)
0% (0)
0% (0)
0% (0)
0% (0)
By Jon
Good Quality & Price
September 18, 2021
The battery works great in my Asmodus 100W box mod, it lasts a long time and charges quickly. I highly recommend it.
By Bigjoe
This battery is a beast!
May 12, 2017
Fantastic capacity for any application that it will fit into.

Sanyo NCR 20700 4200mAh 3.7V Unprotected High-Drain 15A Lithium Ion (Li-ion) Flat Top Battery - Boxed

  • $6.75
  • & Free Shipping On Orders Over $50
  • In Stock