lithium ion battery cell 21700 3.6V 4500mAh cylindrical rechargeable battery cell

3.6V  Lithium ion battery cell  ISR 21700 - 4500 mAh

As a premier 4500 mAh Lithium Ion Battery Manufacturer, SINC specialize in high-performance energy solutions designed to meet rigorous industry standards. SINC offers a high-capacity, reliable, and efficient power source that operates within a voltage range of 3.2V–4.2V (nominally around 3.6V–3.7V). This advanced energy storage device balances energy density, longevity, and safety for both consumer electronics and industrial equipment. Experience the trusted quality of SINC 4500 mAh  Lithium Battery dedicated to excellence.

Factory direct 21700 rechargeable battery 21700 4500mAh 3C

Battery type: ternary lithium-ion cylindrical battery

Battery size: Diameter 21, Height 70

Battery capacity: 4500mAh

Key Features

 High Energy Density:
Our certified 4500 mAh Lithium Ion Battery stores 4500 mAh of energy in a compact design. Available in popular configurations such as cylindrical 21700 and 26700 formats, it ensures lightweight portability without compromising power output. It even qualifies as a 4500 mAh Lithium Battery in select applications.

Wide Operating Temperature Range:
Engineered to function reliably from -40°C to 60°C during discharge and 0°C to 45°C during charging, this battery is ideal for extreme conditions—from polar expeditions to high-altitude devices.

Robust Discharge Performance:
Designed for high-demand applications, the battery supports a continuous 2C discharge (up to 9A) with 3C–5C pulse discharge capability for high-power devices like electric tools.

Long Cycle Life & Durability:
With a cycle life ranging from 500 to 700 cycles for standard models—and up to 1500 cycles for LiFePO? variants—this product ensures sustained performance while maintaining over 70% capacity.

Standardized Charging Mode & Low Internal Resistance:
Featuring an internal resistance ≤22mΩ, it supports stable discharge and efficient energy transfer. Standard charging currents (0.9A at 0.2C up to 2.25A at 0.5C) make it compatible with mainstream charging systems.