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3.7V 3000mAh 11.1Wh Li-ion Polymer Battery for Portable Speakers
Product Overview
High-performance OEM lithium polymer battery cell designed for portable audio equipment and various electronic applications. Features square form factor, reliable performance, and long cycle life.
Technical Specifications
Parameter
Specification
Model Number
134342
Nominal Voltage
3.7V
Nominal Capacity
3000mAh
Energy
11.1Wh
Dimensions
13×43×42mm
Weight
65g
Shape
Square Battery
Electrolyte
Li(NiCoMn)O2
Cycle Life
≥500 cycles
Continuous Discharge
0.5C
Max Discharge Current
1C
HS Code
8507600090
Electrical Characteristics
Parameter
Value
Charge Voltage
4.2V
Standard Charge Current
0.5C
Rapid Charge Current
1.0C
Max Charge Current
0.5C
Discharge Cut-off Voltage
2.5V ± 0.25V
Charging Temperature
0°C to 45°C
Discharging Temperature
0°C to 45°C
Storage Temperature
-10°C to +45°C
Charging Method
Standard charging: 0.5C CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge until current declines to ≤0.05C
Drop Test: Cell withstands 1-meter drop onto concrete ground twice without fire or leakage
Application Areas
Lighting: Headlamps, emergency lights, solar flashlights, searchlights, bicycle lights, LED lighting
Outdoor Sports: Camping lights, mountain bike lights, solar emergency lights, self-defense flashlights
Consumer Electronics: Portable speakers, MP3 players, tablets, laptops, Bluetooth earphones, power banks
Home Appliances: Electric mops, vacuum cleaners, children's toys, electric shoes, electric blankets
Medical Devices and Instruments
Electric Transportation: E-bikes, electric cars, scooters, motors, trolleys
Power Tools: Electric drills, mowers
UPS and Backup Energy Systems
Voltage Comparison: 3.7V vs 3.8V Batteries
Nominal & Charging Voltage
3.7V Standard: Nominal 3.7V, Charge cut-off 4.2V
3.8V High Voltage: Nominal 3.8V, Charge cut-off 4.35V
Energy Density
High-voltage batteries provide approximately 15% higher volumetric energy density
Achieved through higher nickel content in cathode materials (NCM811/NCA)
Cycle Life
High-voltage batteries typically have shorter cycle life due to higher operating voltage
Standard-voltage batteries offer better longevity for industrial applications
Application Scenarios
3.7V: Mature technology, high safety, low cost - ideal for portable devices, Bluetooth headsets, dashcams
3.8V: Higher energy requirements - used in high-end phones, IoT terminals, medical equipment (requires 4.35V charging circuits)
Product Images
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 ...