3.7V 450mAh Lithium Polymer Battery AS702035
3.7V 450mAh lithium polymer battery (AS702035) with integrated Seiko S-8261 protection circuit and Molex 78172-0002 connector. Weighs 10g at 7.1mm thin with 50mm UL3302 28AWG wires — ideal for Bluetooth speakers, GPS trackers, portable fans, and handheld devices. OEM/ODM customization available.
Description
Model AS702035 – 3.7V 450mAh Lithium-ion Polymer Battery (1S LiPo)
Voltage: 3.7V | Capacity: 450mAh (1.665Wh) | Size: 36 x 20.5 x 7.1mm (with PCM) | Weight: 10g
The AS702035 is a compact 3.7V 450mAh lithium polymer battery designed for portable electronics that demand reliable power in a slim, lightweight form factor. Weighing just 10g and measuring only 7.1mm thin (with protection circuit), this 1S LiPo battery delivers 1.665Wh of energy with consistent discharge performance.
Equipped with an integrated Seiko S-8261DAA-M6T1U protection IC and dual 8205A MOSFETs, the AS702035 provides comprehensive protection against over-charge (4.28V), over-discharge (3.00V), over-current (1.0~4.0A), and short circuits. It comes pre-assembled with a Molex 78172-0002 connector and 50mm UL3302 28AWG wires for easy plug-and-play integration. Whether you are building Bluetooth speakers, GPS trackers, portable fans, or handheld medical devices, this rechargeable lipo battery delivers stable 3.7V power with a proven cycle life of 300+ charges.
Technical Specifications
| Battery Type | Lithium-ion Polymer Battery (1S LiPo) |
| Part Number | AS702035 (P/N: AS-702035-0450-112) |
| Voltage @ Capacity | 3.7V @ 450mAh (1.665Wh) |
| Protection Circuit | Yes (PCM Included) Seiko S-8261DAA-M6T1U IC + 8205A MOSFET |
| Cell Dimensions (L x W x T) | 34.0mm x 20.0mm x 6.8mm |
| Pack Dimensions (with PCM) | 36.0mm x 20.5mm x 7.1mm |
| Weight | Approx 10.0g (±1.0g) |
| Connector & Wire | Molex 78172-0002 (2-Pin) Wire: UL3302 28AWG 50mm ±2mm (Red P+, Black P-) |
| Charge Current | 0.2C (90mA) Standard | Max 1.0C (450mA) |
| Charge Voltage | 4.20V (Max 4.23V) |
| Max Discharge Current | 450mA (1.0C Continuous) |
| Discharge Cut-off Voltage | 3.00V |
| AC Impedance | Cell ≤90mΩ | Pack ≤150mΩ |
| Cycle Life | ≥80% after 300 cycles | ≥65% after 500 cycles |
| Operating Temperature | Charge: 0°C ~ +45°C | Discharge: -10°C ~ +50°C |
| Storage Temperature | -10°C to +35°C (Recommended: 20°C at shipment state) |
| Shipping Voltage | 3.80V ~ 4.10V (50~80% charged) |
| Certifications | CE, RoHS, REACH, Halogen Free |
Protection Circuit Module (PCM) Parameters
| Over-Charge Protection Voltage | 4.28 ± 0.025V |
| Over-Discharge Protection Voltage | 3.00 ± 0.050V |
| Over-Current Protection | 1.0 ~ 4.0A |
| Normal Operation Current Consumption | ≤7µA |
Core Advantages
- ✔Balanced Power & Size: 450mAh capacity in a slim 7.1mm profile at just 10g — delivers 1.665Wh of energy while fitting comfortably into portable device enclosures.
- ✔Premium Seiko Protection IC: Built-in Seiko S-8261DAA-M6T1U protection IC with dual 8205A MOSFETs safeguards against over-voltage, over-current, over-discharge, and short circuits.
- ✔Plug-and-Play Molex Connector: Pre-assembled Molex 78172-0002 2-pin connector with 50mm UL3302 28AWG silicone wires — secure, reliable, and ready for direct integration without soldering.
- ✔Proven Cycle Life: Maintains ≥80% capacity after 300 cycles and ≥65% after 500 cycles — dependable long-term performance for consumer and industrial products.
- ✔Wide Temperature Range: Operates from -10°C to +50°C discharge with low internal resistance (≤150mΩ pack) — stable performance in both cold and warm environments.
Perfect For Applications
portable speakers, voice recorders.
GPS trackers, pet locators.
mini fans, wearable fans, USB cooling devices.
health monitors.
portable monitors, nebulizers.
remote controls, data loggers, handheld scanners.
Customization Services (OEM/ODM)
We understand that every product is unique. Our services allow you to tailor the AS702035 to your specific needs:
- Connector Customization: Replace Molex 78172 with JST, PH, XH, or custom connectors to match your PCB design.
- Wire Length & Gauge: Adjust wire length (currently 50mm) or switch to a different AWG gauge to fit your assembly.
- Battery Shape & Size: Modify dimensions or combine cells for higher voltage (2S/3S) or capacity (parallel configuration).
- NTC Thermistor: Add a 10K NTC temperature sensor wire for applications requiring thermal monitoring.
- Branding: Add your logo or specific labeling to the shrink wrap.
