Shenzhen Resky Electronics Co., Ltd.
                                                                                                           
Verified Supplier
14 Years
Since 2012
Menu

Rechargeable Lithium Cell 302030 3.7V 120mAh Power Li-ion Li-polymer Battery Pack For Record Pen

Price Negotiable
Price: Negotiable
MOQ: 500pcs
Delivery Time: 7-10days
Brand: RESKY
Product Description
Rechargeable Lithium Cell 302030 3.7V 120mAh Power Li-ion Li-polymer Battery Pack
Compact rechargeable lithium polymer battery designed specifically for recording pens and other small electronic devices requiring reliable portable power.
Technical Specifications
Item Specifications
Battery Type 3.7V 120mAh LiPo battery
Charge Voltage 4.2V
Nominal Voltage 3.7V
Nominal Capacity 120mAh @ 0.2C Discharge
Charge Current Standard Charging: 0.2C
Rapid charge: 1.0C
Standard Charging Method 0.5C CC charge to 4.2V, then CV charge till current ≤0.05C
Charging Time Standard: 2.75 hours
Rapid: 2 hours
Max. Charge Current 0.5C
Max. Discharge Current 1.0C
Discharge Cut-off Voltage 2.5V±0.25V (0.2C)
Operating Temperature Charging: 0°C~45°C
Discharging: 0°C~45°C
Storage Temperature -10°C~+45°C
Dimensions Length: 30±0.5mm
Width: 20±0.5mm
Thickness: 3±0.2mm
Drop Test Dropped from 1m height twice onto concrete - no fire/leakage
Cycle Time ≥500 cycles
Usage & Maintenance Guidelines
For use only with devices marked "3.7V Small Lithium Polymer Battery" (e.g., smart bracelets, micro sensors). Do not use with other battery specifications to prevent voltage mismatch.
Important: Inspect battery every 1-2 months. Discontinue use if you notice bulging or leakage (sticky white powder). For long-term storage, maintain charge at 3.7-3.8V (50%-60% capacity).
Storage Recommendations
  • Store at 10-25°C (optimal 20°C) with humidity <60%
  • Keep away from humid environments and heat sources
  • Use insulated containers away from metal objects
  • Wrap terminals when storing multiple batteries
Transportation Guidelines
  • Wrap terminals with insulating tape or caps
  • Use bubble wrap or foam bags for protection
  • For bulk transport, use anti-static packaging
  • Maintain temperature between 10-30°C during transport
Primary Applications
Consumer Electronics
Bluetooth headsets, wireless mice, smartwatches, MP3/MP4 players, digital photo frames, and other personal digital devices.
Smart Home and IoT Devices
Including smart remote controls, fingerprint locks, tire pressure monitors, smart robots, mite removers, and other low-power smart hardware.
Medical and Health Devices
Electronic scales, eye massagers, beauty devices, blood glucose meters, and other portable medical instruments.
Outdoor and Sports Equipment
Bluetooth speakers, camping lights, action cameras, electric toys, and other outdoor gear requiring a portable power source.
Other Small Electronic Tools
Including walkie-talkies, barcode scanners, dashcams, e-readers, and other professional or everyday tools.
Product Images
Rechargeable Lithium Cell 302030 battery front view Rechargeable Lithium Cell 302030 battery side view Rechargeable Lithium Cell 302030 battery terminal detail Rechargeable Lithium Cell 302030 battery size comparison Rechargeable Lithium Cell 302030 battery packaging

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Resky Electronics Co., Ltd.
Location Room 1405-1, Building 3B, Huaqiang Idea Park, Guangming Street, Guangming District, Shenzhen, Guangdong Province,China
Contact Person Alice

Request A Quote

Please check your email address.
Your message must be at least 20 characters.