Dongmagnetic 18650 Power Battery High Magnification 4000mAh 10C J Protection Functions Overcharge Explosion-Proof Valve Short Circuit Overdischarge Protection Nickel Cobalt Manganese Ternary Lithium 3.7V 4Ah
Dongmagnetic 18650 Power Battery 4000mAh 10C High Magnification Nickel Cobalt Manganese Ternary Lithium

This 18650 power battery from Dongmagnetic delivers a rated capacity of 4000mAh and a 10C discharge rating, making it suited for devices that require high current output. The battery uses nickel cobalt manganese ternary lithium (NCM) chemistry, a widely adopted formulation for its balanced energy density and discharge characteristics. Safety features include overcharge, overdischarge, and short circuit protection, plus an explosion-proof valve. The nominal voltage is 3.7V and nominal capacity is 4Ah.
Features and Construction

This battery is built to support high-drain applications with built-in safeguards. The 18650 format is standard and fits many battery compartments.
Protection Circuitry
The battery integrates overcharge protection, overdischarge protection, and short circuit protection to help prevent common electrical faults during use and charging. An explosion-proof valve provides an additional safety layer.
Capacity and Discharge
With a nominal capacity of 4000mAh and a 10C high magnification discharge rating, this battery can deliver sustained power for devices that draw higher currents. The 3.7V nominal voltage is typical for lithium-ion cells.
Uses and Placement

This battery is designed for high-drain applications where standard consumer cells may not suffice. The 18650 size is common in many electronic devices, flashlights, and portable equipment.
High-Drain Devices
Suitable for power tools, e-bikes, and other equipment that require bursts of high current. The 10C rating indicates the battery can discharge at up to 10 times its capacity under load.
Replacements and Projects
Can be used as a replacement cell in battery packs or for DIY electronics projects that require protected 18650 cells with high current capability.
Benefits and Buying Value

This battery combines safety protections with high discharge capability in a standard size, offering practical value for demanding applications.
Safety and Reliability
Multiple protection functions reduce the risk of damage from overcharging, overdischarging, and short circuits, helping to prolong battery life and safe operation.
Why Choose This Product
The Dongmagnetic 18650 power battery provides a balance of capacity, discharge rate, and built-in safety features at an accessible price point, making it a practical choice for high-drain uses.
