21700 Batteries by


Sub Category: Batteries


Availability: 2 in stock

– Model: 40T
– Size: 21700
– Manufacturer: Samsung
– Country of Origin: South Korea
– Chemistry: INR
– Max. continuous discharge current: 25A (35A Temp Limited) – Rated by Mooch
– Nominal capacity: 3950 mAh
– Nominal voltage: 3.6 V
– Discharge end voltage: 2.5 V
– Charging voltage: 4.20 +/- 0.05 V
– Standard charging current: 1.5 A
– Protection: Not Protected (Flat-Top)

Safety, storage and disposal
Lithium ion (Li-Ion) Cells can be dangerous if used improperly. By buying Li-ion batteries from Fogstar, the buyer assumes all associated risks.

– Always use a battery charger that is rated for Li-ion cells
– Batteries should never be left charging unattended
– Batteries should never be loose in pocket or bag (use case provided)
– All lithium batteries have a cycle-life, however a battery should be replaced every 2 years – whichever comes first.
– Never continue to use a battery with a broken PVC wrap.
– Never completely discharge batteries
– Do not expose to extreme heat.

Sold as a pack of 2.


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