Power Lithium Ion Battery 124065 3.7v 4000mAh 14.8wh Rechargeable Lipo Battery Packs
Price:
Negotiable
MOQ:
100pcs
Delivery Time:
7-10days
Brand:
RESKY
Product Description
Power Lithium Ion Battery 124065
3.7V 4000mAh 14.8Wh Rechargeable LiPo Battery Packs
Product Specifications
| Working Voltage | 3.7V |
| Discharge Rate | Low Discharge Rate |
| Electrolyte | Li(NiCoMn)O2 |
| Nominal Capacity | 4000mAh |
| Weight | 40g |
| Cycle Life | 500 cycles |
| Warranty | 12 months |
| Shipping | UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line |
| Specification | 12*40*65mm |
| HS Code | 8507600090 |
Technical Specifications
| Item | Specification |
|---|---|
| Batteries | 3.7V 4000mAh LiPo battery |
| Charge Voltage | 4.2V |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 4000mAh 0.2C Discharge |
| Charge Current | Standard: 0.2C, Rapid: 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 |
| Dimension | Length: 66±0.5mm, Width: 40±0.5mm, Thickness: 12±0.2mm |
| Drop Test | 1 meter drop onto concrete twice - no fire, no leakage |
| Cycle Time | ≥500 times |
Lithium Battery Cell vs ICR21700 Comparison
Lithium Battery Cell Advantages
- Lightweight and flexible aluminum-plastic packaging under 1mm thickness
- 20-40% lighter than equivalent capacity steel/aluminum-cased batteries
- High safety with bulging/leakage rather than explosion during abuse
- Excellent low-temperature performance with over 70% capacity in sub-zero environments
- Low internal resistance
Lithium Battery Cell Disadvantages
- Lower mechanical strength, susceptible to puncture or compression damage
- Higher cost due to customized production
21700 Lithium-ion Battery Advantages
- High energy density
- Cost-effective standardized production
- Rugged metal casing for mechanical protection
- High rate discharge capability
- Long cycle life exceeding 500 cycles
21700 Lithium-ion Battery Disadvantages
- Fixed cylindrical shape with low space utilization
- Higher safety risks with potential thermal runaway
- Larger size and weight (Φ21.4mm * 70.6mm, ~69-70g)
Typical Applications
Li-Po Applications
Portable electronics, smartphones, tablets, wearables, drones, RC toys, and thin devices requiring flexible power solutions
Cylindrical Li-ion Applications
Electric vehicles, laptops, power tools, and large energy storage systems
Specific Use Cases
- Lighting Equipment: LED lamps, high-temperature lamps, portable lighting, outdoor camping lights
- Consumer Electronics: Bluetooth speakers, shavers, power banks, hand warmers, electric toys, fans
- Smart Devices and Sensors: Smart homes, projectors, walkie-talkies, POS machines, health monitoring equipment
- Industrial Instruments: High-precision testing instruments, explosion-proof equipment, positioners, barcode scanners
- Medical Equipment: Portable medical instruments, massagers, beauty devices
- Wearable Devices: Custom-shaped embedded terminals and wearable technology
Product Images
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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