Efest 21700 3700mAh IMR Battery 1PC

Efest has developed an impressive record as one of the world's most trusted battery brands. The Efest IMR 21700 (3700mAh) 35A 3.7v Flat-Top Rechargeable Battery is a high-drain rechargeable battery with a capacity of 3700 mAh and a lithium-ion chemical composition. This battery is compatible with devices that accept 21700 mechanical batteries. These batteries are regarded as a premium product due to their ability to sustain hundreds of charging cycles without fail. Their beautiful purple packaging indicates to the world that they are the real deal.

 Features of Efest 21700 3700 mAh IMR Battery 1PC

• Capacity Estimated: 3700 mAh
• 7V Nominal Voltage
• End-of-discharge voltage: 2.5 volts
• Charge current maximum: 4A
• Charge standard: 2A
• Discharge current: 35A
• L 20Ohm
• Size of cell: 21mm x 70mm
• Temperature range for charging: 0 to 45 degrees Celsius
• Temperature range of discharge: -20C to -75C
• Inner resistance

 Warning: 

• If you're employing mechanical modifications, be aware of your battery's amperage limit and avoid putting it under excessive pressure.
• Batteries with damaged packaging should be replaced.
• Batteries should not be left in the car.
• Keep your batteries separate from your loose cash or keys in your pocket.
• When not in use, store your batteries in an appropriate battery case.
• Keep your battery charger in a visible location.
• Excessive heat (over 80F) and cold (below 40F) are detrimental to batteries.
• Battery life diminishes with time and should be changed every 3-6 months, depending on use and battery quality.