Better Way INR 21700-40EC Batterie

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Product Detail

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Parameters

Typical parameters	Introduction to application scenarios of different types of products
Nominal voltage: 3.7V	Capacity type – widely used in new energy vehicles or electric two wheeled vehicles and other means of transportation. Advantages: high capacity, strong endurance and long cycle life.
Nominal capacity:4000mAh@0.2C
Maximum continuous discharge current:3C-12000mA
Recommended ambient temperature for cell charging and discharging: 0~45 ℃ during charging and -20~60 ℃ during discharging
Internal resistance: ≤ 20m Ω
Height: ≤71.2mm
Outer diameter:≤21.85mm
Weight: 70±2g
Cycle life: normal atmospheric temperature25℃ 4.2V-2.75V +0.5C/-1C 600 cycles 80%
Safety performance: Meet gb31241-2014, gb/t36972-2018, ul1642 and other standards

The meaning of 21700 battery usually refers to a cylindrical battery with an outer diameter of 21mm and a height of 70.0mm. Now companies in Korea, China, the United States and other countries are using this model. At present, there are two popular 21700 batteries on sale, namely 4200mah (21700 lithium battery) and 3750mah (21700 lithium battery). 5000mAh (21700 lithium battery) with larger capacity will be launched soon.

Warning

The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. This battery is sold for the use of system integrations with proper protection circuitry or battery packs with a battery management system or PCB (circuit board/module). Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. Charge only with a smart charger designed for this specific type of lithium ion battery.

Misusing or mishandling lithium ion batteries can pose a SERIOUS RISK of personal injury, property damage, or death
BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
ONLY use with proper protection circuitry
ONLY use within manufacturer specification
DO NOT store loose in pocket, purse, etc. – always use a protective case
KEEP AWAY from metal objects to prevent short circuiting
DO NOT short circuit
DO NOT use if wrapper or insulator is damaged or torn
DO NOT use if damaged in any way
DO NOT overcharge or over-discharge
DO NOT modify, disassemble, puncture, cut, crush, or incinerate
DO NOT expose to liquids or high temperatures
DO NOT solder
User must be familiar with handling lithium ion batteries before purchase
Usage of batteries is AT YOUR OWN RISK