Samsung 21700-40T Battery 4000mAh

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Rated Voltage3.7V
Rated Capacity4000mAh
Internal Resistance20mΩ  
Net Weight70g
Cut-off Discharge Voltage2.75V 
Charge Upper Limit Voltage4.20±0.05V
Charging Time1.5 hours(with Efest battery charger)
Max Discharging Current50A
Continuous Discharging Current70A
Cycle Life>500s
Standard chargercc/cv(max ,charging rate 2A)
Warranty1 years
Operating  Temperaturecharge (0 ~ 45°C)
discharge  (-20 ~ 60°C)
Storage Temperaturewithin 1 month  (-20~ 50°C)
within 3 months  (-20~ 40°C)

within 3 months (-20~ 20°C)

This price is for 1pc

    • 32% off
    $15.49, save $4.96
  • $10.52
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