INR 21700 40T 4000mAh Li Ion Flat Top Battery

4 reviews
Regular price$5.99
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Another great cell. This is the larger 21700 size that supports up to 30 amps and a huge capacity.

These high capacity Lithium Ion batteries can handle a whopping 30 amps! Thus allowing them to be used in many high power application such as powering radio gear or any other application where the amp draw is at or under 30 amps.

  • Sold Individually
  • Flat Top
  • INR21700-40T
Capacity 4000
Nominal Voltage 3.6V
Charging Current 1.5A
Charging Voltage 4.2V
Max Continuous Discharge Current 30A
Size 21 x 70mm
Weight 69g
INR 21700 40T 4000mAh Li Ion Flat Top Battery

Customer Reviews

5.0 Based on 4 Reviews
5 ★
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100reviewers would recommend this product
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Marc G.
United States United States
I recommend this product

Really great experience

This is my first time using this company and everything went stellar. My package arrived well packaged and a day early. I highly recommend using this company


Sony INR 21700 4000mAh Battery

Great battery, fast shipping, and as always best in class customer service. I do reccomend Aloft to family and friends. Will be back to buy more very soon! Thank you Aloft!



All 84 cells arrived on time and perfectly balanced at 3.5v. A+++


Liion batteries

Purchased for my Volantex Phoenis S 1600 to do 4Ah 2S. Soldered, charged and works like a charm. Prefer this over the 18650 due to higher Amp draw. Thanks to the higher amp draw good as a 3S for any of my planes. All batteries were charged as they should for storage and all within 0.01 V difference. Quick shipping, good price.