Nominal Voltage: 10.8V
Rated Capacity: 8100mAh
Max.charge Voltage: 12.6V
Max.charge Current: 8.0A
Standard battery pack GS4040IL
Standard battery pack GS4040IL (3S3P) suitable for use with industrial and medical devices, etc.
GS4040IL is approved worldwide
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-FCC.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-CE.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-UKCA.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-UN38.3.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-PSE.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-recycle-the-used-battery.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-chinese-environmental-label.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-li-ion-recycle.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/08/tefoo-energy-certificate-logo-Battery-Directive.png)
![](http://cdn.tefoo-energy.com/wp-content/uploads/2023/09/WechatIMG106.jpg)
Description
- Standard SMBus v1.1 interface.
- Integrated LED state of charge (SOC) indicator.
- JEITA charging optimization rules.
- Full safety protection functions, such as over voltage, over current, reverse connection protection, etc.
- Balance function, effectively improve battery life.
- High-precision Fuel gauge.
- Multiple product profiles, high reliability construction, power visualization
- Finger type metal interface, easy to disassemble design.
- The host can monitor the battery temperature
- Panasonic cells with the highest energy density and stability.
- Worldwide approvals and certifications for safety standards, including UN38.8, UL, CE, etc.
- No development fee, no mill fee, no certification fee
- Stock available, no MOQ limit
- Multiple safety redundancy design
- Up to 80% of initial capacity after 500 cycles