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Samsung 50E INR 21700 5000mAh 3.7V Unprotected High-Drain 10A Lithium Ion (Li-ion) Flat Top Battery

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Samsung INR 21700 Li-ion Battery

5000mAh Capacity

The Samsung INR 21700 Li-ion Battery is one of the most powerful and reliable cells that we offer in this size. The high capacity of 5000mAh is sure to keep your electronic devices running longer! The INR chemistry is known to power a variety of high-drain devices with a high discharge current. This battery size may be unique, but can also fit in various medical devices, and power tools.

The 50E 21700 battery has a rechargeable chemistry of Lithium manganese nickel (LiNiMnCoO2). INR batteries are stable and a little bigger than a standard 18650 allowing the cell to hold more chemistry internally, providing you with more power than other kinds of chemistries.

In addition, the INR 21700 Lithium Ion battery is rechargeable. Recharge your drained batteries to save money and help the environment. If you don't have the right charger for your batteries, we have a variety to choose from. The Xtar SV2 Li-ion Charger is the newest and most efficient universal charger for INR batteries.


  • High capacity for a longer runtime
  • Rechargeable for continued use
  • Stable chemistry provides powerful outputs
  • Works well in high drain devices
  • Color: Blue


  • Battery Size: 21700
  • Battery Chemistry: Li-ion (INR)
  • Nominal Voltage: 3.7V
  • Nominal Capacity: 5000mAh
  • Max Charging Current: 4.9A
  • Max Discharge Current: 9.8A
  • Operating Temperature Range: -4°F to 140°F (-20°C to 60°C)
  • Dimensions:
    • Length: 2.78" (70.80mm)
    • Diameter: 0.79" (20.25mm)
  • Weight: 2.43oz. (69g)

Battery Size:21700
Battery Capacity (mAh):5000
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Flat Top
Battery Shelf Life:3 Years
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:2.43oz
Product Dimensions:2.78" (L) x 0.79" (Diameter)
Country of Origin:KR
3 Reviews
67% (2)
0% (0)
33% (1)
0% (0)
0% (0)
By Craig
NW Ontario
Exactly what I needed
November 25, 2019
Bought this for a Zebralight SC700d flashlight and it works beautifully. Performance is as advertised.
By Wally
Des Moines Iowa
January 17, 2019
Good battery kind of high priced though
By Sarko
Great Battery
December 26, 2018
Great quality, performs as advertised, great service. Will by again
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Samsung 50E INR 21700 5000mAh 3.7V Unprotected High-Drain 10A Lithium Ion (Li-ion) Flat Top Battery

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