3.7V 420mAh Lithium-ion Polymer Battery AS802035
Reliable 3.7V 420mAh AS802035 Lithium-ion Polymer Battery featuring an integrated protection circuit for enhanced safety. Ideal for small consumer electronics, medical devices, and IoT gadgets. Supports OEM/ODM customization for wires, connectors, and packaging to fit your specific application.
Description
Model AS802035 – Lithium-ion Polymer Battery
Voltage: 3.7V | Capacity: 420mAh (1.554Wh) | Size: 38×20.5×8.1mm
Engineered for safety and performance, this AS802035 Lithium-ion Polymer Battery delivers dependable power in a compact form factor. With a built-in protection circuit, this battery ensures stable operation and safeguards against overcharge, over-discharge and short circuits — making it ideal for sensitive electronics.
Its slim 8.1mm profile and lightweight design allow seamless integration into space-constrained devices, while the high-quality UL3239 28AWG wires (30mm length) provide durable, low-resistance connectivity. Whether you’re powering a wearable health monitor, a wireless sensor or a handheld gadget, the AS802035 offers consistent energy delivery and long cycle life.
Technical Specifications
| Battery Type | Lithium-ion Polymer Battery |
| Part Number | AS802035 |
| Voltage @ Capacity | 3.7V @ 420mAh (1.554Wh) |
| Protection Circuit | Yes (PCM Included) |
| Thermistor (NTC) | / |
| Wires | UL3239 28AWG 30mm |
| Connector | / |
| Dimensions (L x W x T) | 38mm x 20.5mm x 8.1mm |
| Charge Current | 0.2C to 0.5C (Standard Charge) |
| Discharge Current | 0.5C to 1.0C (Continuous) |
| Storage Temperature | 15°C to +35°C |
Core Advantages
- ✔
Built-in Safety: Integrated protection circuit ensures safe, worry-free operation for sensitive electronics. - ✔
Highly Customizable: Tailor wire length, connector type or add custom PCBs to match your product requirements. - ✔
Wide Compatibility: Suitable for consumer electronics, IoT devices, medical equipment and more.
Perfect For Applications
TWS Bluetooth earbud charging cases, kids GPS tracking bracelets, mini sports pedometers
Bluetooth anti-lost trackers,LED keychain lights, electronic bookmark lights, mini ambient night lights,
Asset tracking tags, temperature and humidity sensor beacons, low-power Bluetooth Beacons, smart door and window sensors
Rechargeable electric eyebrow trimmers, mini eye vibrating massagers, compact portable facial mist sprays
Customization Services (OEM/ODM)
We offer full OEM and ODM services to meet your unique design needs. Customize:
- Wire Length & Gauge: Adjust wire length and thickness to fit your internal assembly layout.
- Connector Types: Install JST, Molex, PHR or custom connectors to match your PCB.
- PCB Integration: Add NTC thermistors, fuel gauges or custom protection circuits.
- Packaging & Labeling: Custom branding, labeling and packaging options available.
Upgrade your product’s power source with the AS802035 — where safety, size and performance come together.









