Samsung 40T


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The Samsung 40T outperforms every 18650 and 20700 in regulated devices at up to about 20A-25A (60-75W). It’s a wonderful balance between power and capacity, and is currently among the top 21700 cells on the market as of October 2018!

Flat Top Dimensions : 70.2mm (L) x 21.1mm (D) Weight : ~66.87g
Typical Capacity : 4000mAh
Max Continuous Discharge Rate: 35A Voltage : 3.6V
Full Charge Voltage : 4.2V
Price is per battery.

Weight75.0 g
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