High Quality OEM 3.7V 380mAh 502040 lithium polymer for smart toy, Bluetooth speaker, and dog trainer battery
Type: Li Polymer battery
Model: LNC502040
Nominal Voltage: 3.7V
Nominal Capacity:380mAh
Max Dimensions(T*W*L): 5.2*20.5*42(mm)
Technical Specifications
| Parameter | Specification |
|---|---|
| Battery Model | LNC502040 |
| Product Size | 5.2 × 20.5 × 42 mm |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 380mAh |
| Charging Voltage | 4.2V |
| Discharge Voltage | 2.75V |
| Charging Current | Standard: 0.2C; Maximum: 0.5C |
| Charging Temperature | 0°C to 45°C |
| Discharge Current | Standard: 0.2C; Maximum: 0.5C |
| Discharge Temperature | -20°C to 60°C |
| Protection Functions | Overcharge Protection, Over-discharge Protection, Overcurrent Protection, Short Circuit Protection |
| Battery Weight | 7.85g |
Explore more
LiPo Battery Models
including ultra thin, slim, standard, high capacity, cylindrical and custom shaped LiPo batteries.
Safety Protection Options
- Overcharge Protection
- Over-discharge Protection
- Overcurrent Protection
- Short Circuit Protection
- Optional PCM / PCB Protection Integration
Customization Options
✔ Capacity adjustment
✔ Battery size modification
✔ PCM / PCB integration
✔ Wire & connector customization
✔ OEM branding & labeling
✔ Engineering sample support
Key Features
✔ High energy density Li-Polymer chemistry
✔ Stable 3.7V nominal output
✔ Low self-discharge & reliable cycle performance
✔ Stable discharge performance
✔ Optional PCM / PCB protection integration
✔ Compact lightweight pouch cell structure
Applications
Wearable Devices
Smart Rings
IoT Sensors
GPS Trackers
Portable Electronics
Medical Devices
Engineer Notes
For OEM/ODM projects, it is recommended to confirm:
- Available installation space (L × W × T)
- Peak current requirement
- Continuous discharge current
- Application operating environment
Engineering samples are available for mechanical and electrical validation.
Request Samples or Custom Battery Solution
Please provide your required battery size, capacity target, current requirement, and application details.
Our engineering team will recommend the most suitable battery configuration for your project.
