4055130 11.1V 4000mAh Lithium Polymer Battery Pack

Product Number:
37AQ132-01
Nominal voltage:
11.1V
Nominal capacity:
4000mAh
Battery Configuration:
LA4055130-3S1P
Dimension:
170×147×5mm (±0.2mm)
Application:
Medical devices
SMBUS communication, Multi-protection BMS, Slim flexible pack design
Product Overview

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)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.