Our 21700 Battery is a high-performance power source suitable for a variety of applications. It boasts an impressive battery capacity of 4000mAh, ensuring extended use and reliability. The low internal resistance, ranging from 8 to 10mΩ, enhances energy efficiency and minimizes heat generation during operation.

Weighing only 65 grams, this 21700 Battery is a lightweight yet robust power solution. It’s specifically designed for applications where a high discharge current is essential, with an upper limit of 45A (10C). This ensures reliable and sustained power output even during demanding tasks.

The operating voltage of the battery falls within the range of nominal 3.6V, with an upper limit of 4.2V and a lower limit of 2.5V, making it compatible with a wide range of devices and systems. It can operate effectively in a temperature range of 25 to 40 degrees Celsius during charging and between -20 and 50 degrees Celsius during discharge.

Model Number	LR2170LA
Battery Size	21700
Weight	65±1g
Storage Type	Normal Storage
Anode Material	LFP
Nominal Voltage	3.6V
Operating Voltage	2.5V~4.2V
Internal Resistance	<12mΩ
Dimensions (Diameter/Length)	Max.21.4*70.7(mm)
Maximum Charging Current	6A
Maximum Discharge Current	45A
Weight	65g
Features	10C Rate
Range of Use	Power storage class
Safety Function	Over-charging protection, short-circuit protection, over-discharge protection