
4055130 11.1V 4000mAh Lithium Polymer Battery Pack
This battery is designed for advanced medical aesthetic devices, used in high-frequency or multi-mode beauty treatments. With ultra-thin and compact design and SMBUS communication, it ensures stable power delivery and precise capacity monitoring for safe and reliable device operation.
Electrical Specifications
| Property | Parameter |
|---|---|
| Product Number | 37AQ132-01 |
| Cell Model | LA4055130/4000mAh/3.7V |
| Battery Configuration | LA4055130-3S1P |
| Nominal Voltage | 11.1V |
| Nominal Capacity | 4000mAh |
| Rated Energy | 44.4Wh |
| Charging Voltage | 12.6V |
| Discharge Cut-off Voltage | 9V |
| Standard Charging Current | ≤1.5A |
| Standard Discharge Current | 2A |
| Internal Resistance | ≤200mΩ |
Mechanical & Environmental
| Property | Parameter |
|---|---|
| Charging Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Storage Temperature | -20~25℃ |
| Dimensions | 170×147×5mm (±0.2mm) |
| Weight | 200g |
| Battery Case | PC + Marla silica tape |
| Communication Protocol | SMBUS |
| Protection System | Short circuit / Overcharge / Overdischarge / Overcurrent / SMBUS communication |
Application Background
This battery solution is designed for medical aesthetic devices, such as RF, micro-current, and portable beauty instruments with continuous or intermittent operation modes.
The device requires stable power supply during multi-mode energy output, with high demands on voltage stability, transient response, and ultra-thin structure design.
Project Challenges
Device requires multi-level energy output switching
High-frequency pulsed operation causes current fluctuations
Frequent charge-discharge cycles require stable performance
Ultra-thin device structure limits battery thickness and weight
Customized Battery Solution
3S lithium structure: 11.1V output platform for stable energy supply in beauty devices
Ultra-thin flexible packaging: PC + adhesive tape process for compact device integration
SMBUS communication management: real-time monitoring of battery status and operation data
Multi-protection system: overcharge, overdischarge, overcurrent, short circuit, and temperature protection
Application Results
Ensures stable multi-mode device operation
Supports consistent power delivery for high-frequency energy output
Reduces overall device weight and improves portability
Enhances operational safety and system reliability
We support flexible customization based on your project requirements, including:
- Voltage range: 3.2V – 72V
- Capacity range: 100mAh – 100Ah
- Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
- Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
- BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)












