ASOL 903659 Lithium Polymer Battery — A wide-temperature 2500mAh (9.25Wh) soft-pack Li-Po battery engineered for smart home security and outdoor monitoring applications. The -20°C to +60°C operating range covers extreme conditions that defeat standard consumer batteries — outdoor winter security monitoring, summer sun-exposed cameras, and year-round smart home devices. The compact 9.0×36×59mm rectangular footprint fits wireless security camera battery packs, smart video doorbell housings, solar camera enclosures, smart bird feeder camera compartments, and smart door lock battery compartments.
Why Wide Temperature -20°C to +60°C?
| Environment | Standard Battery (0~45°C) | ASOL 903659 (-20~60°C) |
|---|---|---|
| Outdoor Security Camera (Winter) | ❌ Fails below 0°C | ✅ Works at -20°C |
| Dashcam in Parked Car (Summer) | ❌ Fails above 45°C | ✅ Works at +60°C |
| Outdoor GPS Tracker (Winter) | ❌ Fails below 0°C | ✅ Works at -20°C |
| Smart Video Doorbell (All Season) | ❌ Limited to mild climates | ✅ -20°C to +60°C |
Standard consumer LiPo batteries are rated for 0°C to +45°C charging and 0°C to +60°C discharging. The 903659’s -20°C lower limit extends deployment into outdoor winter security monitoring, cold-weather GPS tracking, and year-round smart home installations.
Key Features
Ultra-low-temp power, built tough
Engineered for security cameras, doorbells, solar cams, and smart locks.
High capacity for extended outdoor deployment and smart home backup.
Fits camera, doorbell, solar, and smart lock battery compartments.
Long-term reliability for embedded applications.
UN38.3 certified for safe global shipping.
Supports high-drain device startup.
Customizable connector options available.
Integrated circuit guards against overcharge and short circuit.
Specifications
| Parameter | Value |
|---|---|
| Model | 903659 |
| Chemistry | Lithium Polymer (Li-Po) Soft Pack |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 2500mAh |
| Nominal Energy | 9.25Wh |
| Dimensions (T×W×H) | 9.0×36×59mm |
| Weight (Approx.) | ~50g |
| Impedance | ≤150mΩ |
| Charge Voltage | 4.2V |
| Standard Charge Current | 500mA (0.2C) |
| Max Charge Current | 2500mA (1C) |
| Standard Discharge Current | 500mA (0.2C) |
| Max Discharge Current | 2500mA (1C, continuous) |
| Charge Cut-off | 4.2V |
| Discharge Cut-off | 3.0V |
| Charge Temperature | 0~45°C |
| Discharge Temperature | -20~60°C |
| Storage Temperature | -20~45°C |
| Cycle Life | ≥500 cycles (80% capacity retention) |
| Certifications | UN38.3 |
| Protection | Built-in PCM |
| Connector | 3-Pin JST (Customizable) |
Applications
Where the 903659 is used
WiFi wire-free cams – 2–4 weeks continuous, 2–3 months on motion.
Battery doorbell cameras – 3–5 months standby in -20°C to +60°C.
Backup power for solar trail & wildlife cams in low-sun periods.
AI bird-watching cams – 1–2 months continuous recording.
Fingerprint & keypad locks – 6–12 months per charge.
Why ASOL
Factory-direct, fully customizable
Connector, wire gauge, heat-shrink color, custom brand label, BMS & housing.
Integrated PCB against overcharge, over-discharge, overcurrent & short circuit.
Grade-A cells, voltage-matched ±10mV for stable, reliable performance.
Custom prototype samples in 5–7 business days before volume production.
Every unit tested for OCV, capacity & protection. Defect rate <0.3%.
UN38.3 Class 9 air & sea · DHL/FedEx/UPS · EXW/FOB/CIF/DDP.
Wholesale Pricing
| Quantity | Unit Price | Savings |
|---|---|---|
| 100–499 pcs | Contact us | — |
| 500–999 pcs | Contact us | 8% off |
| 1,000–4,999 pcs | Contact us | 15% off |
| 5,000+ pcs | Contact us | 20%+ off |
📌 We welcome sample and custom-spec orders, with full certification documents provided.
❓ Frequently Asked Questions
What are the key specifications of the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery?
The ASOL 903659 3.7V 2500mAh Lithium Polymer Battery is a 3.7V 2500mAh lithium battery, measuring 9.0×36×59mm, weighing ~50g.
What connector does the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery use?
It ships pre-wired with a 3-Pin JST connector. ASOL can customize the connector type, wire length, and labeling to match your device.
What is the maximum discharge current of the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery?
The ASOL 903659 3.7V 2500mAh Lithium Polymer Battery supports a maximum continuous discharge current of 2500mA.
How many charge cycles does the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery last?
The ASOL 903659 3.7V 2500mAh Lithium Polymer Battery is rated for ≥500 cycles, well beyond the lifespan of a comparable standard cell.
What safety certifications does the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery have?
It is certified to UN38.3; certification documents are available to verified buyers.
Does ASOL offer OEM/ODM customization for the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery?
Yes. ASOL is a battery manufacturer, so capacity, voltage, cell configuration, connectors, wire length and custom labelling can all be built to your specification and order volume under OEM or ODM terms.
Can I get a free sample or a quote for the ASOL 903659 3.7V 2500mAh Lithium Polymer Battery?
Yes — samples are free and you simply cover the freight. Reach us at info@asolbattery.com or +86 15779858703 on WhatsApp for pricing; we usually reply within 4 working hours.
Contact Us
| Channel | Information |
|---|---|
| info@asolbattery.com | |
| +86 157 7985 8703 | |
| 🌐 Website | www.asolbattery.com |
| ⏰ Response Time | Within 24 hours on working days |
Need a different size or capacity? Explore ASOL’s full lithium polymer battery range →
