Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
High-performance lithium polymer battery with compact dimensions (12*40*65mm) and reliable 4000mAh capacity for various industrial and consumer applications.
Key Specifications
Parameter
Specification
Working Voltage
3.7V
Nominal Capacity
4000mAh
Energy
14.8Wh
Dimensions
12*40*65mm
Weight
40g
Cycle Life
500 cycles
Warranty
12 months
Technical Specifications
Parameter
Specification
Charge Voltage
4.2V
Charge Current
Standard: 0.2C, Rapid: 1.0C
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
Standard Charging Time
2.75 hours
Rapid Charging Time
2 hours
3.7V vs 3.8V Battery Comparison
3.7V Battery Advantages:
Mature technology with high safety standards
Comprehensive protection circuits (BMS)
Lower cost and competitive pricing
Wide compatibility with portable devices
3.8V Battery Features:
Higher energy density (15.2Wh vs 14.8Wh)
Stable performance in low-temperature scenarios
Smoother discharge plateau
Advanced material systems
Typical Applications
Li-Po Applications
Portable electronics and smartphones
Tablets and wearables
Drones and RC toys
Thin devices requiring flexible power
Specific Use Cases
Lighting equipment and LED lamps
Consumer electronics and power banks
Smart devices and sensors
Industrial instruments
Medical equipment
Wearable technology
Product Images
Shipping Options: UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line HS Code: 8507600090
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2012
Total Annual:
500000-1000000
Employee Number:
20~50
Ecer Certification:
Verified Supplier
Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ... Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ...