3.7V 4000mAh Rechargeable Lithium ion Battery Power Bank Cell

Description

The 3.7V 4000mAh Lithium-ion Rechargeable Battery Cell is a high-capacity, energy-efficient solution designed for a wide variety of portable electronic applications. Featuring a powerful 4000mAh capacity, it ensures extended runtime and stable performance. This cylindrical cell is ideal for devices that demand high energy density with compact dimensions, including PDAs, tablets, GPS units, MP3/MP4 players, and E-books.

Equipped with an integrated Battery Management System (BMS), this battery provides essential safeguards against overcharging, over-discharging, and short circuits. Its ability to support both standard and fast charging modes ensures flexible usage across professional and DIY applications. The cell boasts excellent thermal stability, no memory effect, and extremely low self-discharge, which contributes to longer shelf life and dependable operation, even in demanding conditions. Its the perfect power source for custom electronics, power banks, flashlights, and embedded systems requiring reliable and efficient power storage.

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Applications

• Tablets and PDAs

• E-books and GPS devices

• MP3, MP4, MP5 players

• DIY electronics and embedded systems

• Rechargeable flashlights and power banks

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Features

• 4000mAh high-capacity lithium-ion battery

• Stable 3.7V nominal voltage for consistent performance

• Supports fast charge up to 1.0C

• Integrated BMS for total safety and reliability

• No memory effect with low self-discharge

• Lightweight and compact form factor

• Exceptional low-temperature performance

Specifications

Parameter Details Battery Type Lithium-ion (Cylindrical Cell) Nominal Voltage 3.7V Nominal Capacity 4000mAh Max Charge Current 1.0C Max Discharge Current 1.0C Standard Charge Current 0.5C (approx. 2000mA) Rapid Charge Supported up to 1.0C Charging Method CC to 4.2V, then CV until cut-off Standard Charge Time Approx. 2 hours Discharge Cut-off Voltage 2.45V ~ 3.0V Operating Temperature -20C to +60C Storage Temperature Around 25C Protection Circuit Integrated BMS

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Package Includes

• 1 x 3.7V 4000mAh Lithium-ion Rechargeable Battery Cell