OID503860 Polymer Li-ion Battery 1250mAh 3.7V Ultra-Low Temperature -40C

OID503860 Polymer Li-ion Battery 1250mAh 3.7V

The OID503860 is a high-performance polymer Li-ion rechargeable battery engineered for applications demanding reliable power in extreme conditions. With ultra-low temperature discharge capability down to -40 degree Celsius and intrinsic safety certification, this cell delivers uncompromised performance where conventional batteries fail.

Key Features

• Ultra-Low Temperature Performance: Maintains over 60% rated capacity at -40 degree Celsius — ideal for cold chain logistics, Arctic equipment, and outdoor IoT sensors
• Intrinsic Safety Certified: Designed and tested to meet intrinsic safety standards for use in potentially explosive atmospheres (mining, oil and gas, chemical processing)
• High Energy Density: 4.625Wh in a compact 5.0 x 37.5 x 59.5mm form factor weighing only 26g — maximizes runtime without adding bulk
• Wide Operating Range: Charge from 0 to 45 degree Celsius, discharge from -40 to 60 degree Celsius — one battery for all seasons and environments
• Low Internal Resistance: 60 milliohms maximum at 1kHz AC ensures stable voltage output under load and reduced self-heating
• ROHS Compliant: Meets all environmental and safety regulatory requirements for global markets
• 12-Month Warranty: Full coverage against manufacturing defects from date of customer receipt

Technical Specifications

Safety Performance — Rigorously Tested

Every batch undergoes comprehensive safety testing to IEC and UN38.3 standards:

• Overcharge Test: 4.60V / 3C for 7 hours — no fire, no explosion
• Short Circuit Test: 80 plus minus 20 milliohms for 1 hour — no fire, no explosion
• Crush Test: 13KN (1.72MPa) between flat plates for 30 minutes — no fire, no explosion
• Heat Shock: 5 degree Celsius per minute ramp to 130 degree Celsius, hold 30 minutes — no fire, no explosion
• Vibration Test: 1.6mm amplitude, 10 to 55Hz sweep, X/Y/Z 30 minutes each — no leakage, no fire
• Drop Test: 1 meter onto concrete, twice — no leakage, explosion, or fire
• Humidity and Temperature: 60 degree Celsius at 90 to 95 percent RH for 48 hours
• Low Pressure: 11.6kPa at 23 degree Celsius for 6 hours — no leakage, fire, explosion

Discharge Performance Across Temperatures

Recommended Applications

• Cold chain logistics and temperature monitoring tags
• Industrial IoT sensors and remote telemetry in extreme climates
• Intrinsically safe equipment for mining, oil and gas, chemical plants
• Portable medical devices requiring reliable low-temperature operation
• Outdoor GPS trackers, wildlife monitoring, and Arctic research equipment
• Emergency location beacons and safety devices

Packaging and Shipping

• Individual cells packed in anti-static trays with vacuum-sealed aluminum foil moisture barrier
• UN38.3 compliant export packaging with reinforced outer carton
• Full batch traceability with date code and QR code labeling
• Standard sea freight from Shenzhen port; air freight with UN38.3 documentation available

Storage Guidelines

• Long-term storage: 25 plus minus 5 degree Celsius, 60 plus minus 25 percent RH
• Store at 3.7V to 3.9V (SOC under 30 percent) for extended storage
• Recharge every 6 months to prevent over-discharge
• Shelf life: 1 year under recommended conditions

Contact us today for samples, technical datasheets, and volume pricing. Custom capacity and form factor OEM service available upon request.