Protected Rechargeable Li-ion NCM21700 3.6V 5550mAh Battery with Temp. Protection

* Quality Protected Li-ion Rechargeable Battery with Temp. Protection
* Brand: Keeppower
* Part No.: 21700 5550mAh Temp. Protection
* Maximum Size:（D）22.1*（L）75.2mm
* Nominal Voltage: 3.6V
* Nominal Capacity: 5650mAh
* Weight: 76g

Description

● Model No.: Protected 21700 Temp. Protection

● Nominal Capacity: 5650mAh
● Minimum Capacity:5550mAh
● Nominal Voltage: 3.6V
● Charging Method: CC-CV
● Standard Charging/Discharging Current: 1.1A
● Maximum Charging Current: 2.5A
● Maximum Discharging Current: 2.5A (Accept Customize)
● In Built Safety Circuitry
● Protection Circuit (Against over charge, over discharge, over current and short-circuit.)
● 4.20V maximum voltage and 2.50V cut-off voltage
● Over 500 charge-discharge cycles
● Weight: 76g
● Dimensions: （D）21.9*（L）75.0mm(±0.2mm)
● Temperature Protection:

Charge Over-Temp. Protection: +45 ± 5 ℃

Charge Low-Temp. Protection: +0 ± 5 ℃

Discharge Over-Temp. Protection: 60 ± 5℃

Discharge Low-Temp. Protection: -20 ± 5° C

● Storage Temperature:
Storage: -20 to +60° C (Less than 1 month)
-20 to +45° C (Less than 3 month)

Note: In addition to conventional overcharge, over-discharge, and overcurrent protection, this BMS (Battery Management System) board features an enhanced temperature protection function. A temperature sensor is attached directly to the cell surface for real-time monitoring. Once the temperature reaches the preset safety threshold, the protection board will immediately cut off the load on the output side.

Battery Safety Tips/Caution

Please fully charge the battery before first use.
The battery’s positive terminal may become hot during charging. Please do not touch it.
Do not short circuit. Please keep it away from loose change and metal objects.
Do not immerse battery in any liquid, including water.
Do not expose the battery to direct sunlight or high temperature. Keep it away from fire.
Do not crush, puncture, disassemble, or modify the battery.
Do not reverse the positive (+) and negative (-) terminals when charging or using the battery.
Immediately stop using if battery if it has abnormalities, such as unusual smell, overheating, discoloration, or deformation.
On exposure to battery electrolytes, rinse immediately with water and seek medical treatment.
Keep the battery away from children and pets.

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