The Samsung 30T is the perfect 21700 battery for the Mech users amongst us. With its high amperage discharge it if lengths ahead of the other choices with the added knowledge of it being from one of the largest battery manufacturers in the World Samsung.
Samsung 30T Official specifications:
Standard discharge capacity: min. 3000mAh (1.5A charge 0.1A cut-off, 0.6A discharge, 2.5V cut-off)
Rated discharge capacity: min. 2650mAh (4A charge 0.1A cut-off, 10A discharge, 2.5V cut-off)
Nominal voltage: 3.6V
Charge voltage: 4.2V
Standard charge: 1.5A charge 0.1A cut-off
Rated charge: 4A charge 0.1A cut-off
Max. continuoys discharge: 35A at 25°C
Discharge cut-off voltage: 2.5V
Cycle life: 250 cycles to 60% at 35A discharge.
Cell weight: 69.0g max
Cell dimension: Height: Max: 70.40mm, Diamter: max. 21.22mm
Operating temperature (surface): Charge 0°C ~ 50°C (Recommended <45°C), Discharge -20C° ~ 80°C (Recommended <60°C)
Storage temperature: 1 month: -20°C ~ 60°C, 3 months: -20°C ~ 45°C, 1 year: -20°C ~ 25°C
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