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High-performance lithium polymer battery cell designed specifically for medical devices and professional applications requiring reliable power in compact form factors.
Technical Specifications
Parameter
Specification
Battery Type
3.7V 3000mAh LiPo Battery
Charge Voltage
4.2V
Nominal Voltage
3.7V
Nominal Capacity
3000mAh (0.2C Discharge)
Charge Current
Standard: 0.5C 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 (Ref.) Rapid: 2 hours (Ref.)
Max Charge Current
0.5C
Max Discharge Current
0.5C
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: 70±2mm Width: 40±0.5mm Thickness: 8±0.5mm
Drop Test
1 meter drop onto concrete ground twice - No fire, no leakage
Cycle Life
≥500 cycles
Key Advantages
High Energy Density: Ternary materials provide superior energy density for longer runtime in compact spaces
Lightweight & Flexible Form Factor: Polymer electrolytes enable thin, flexible, and custom-shaped battery designs
High Discharge Platform & Fast Charging: Average operating voltage exceeding 3.7V with low internal resistance for high-rate performance
Cycle Life & Safety: Polymer design with protection circuits ensures structural stability; requires BMS for thermal management
Product Measurements
Protection Circuit Module (PCM) Functions
Overcharge Protection: Cuts off charging circuit when voltage reaches 4.2V-4.25V to prevent cell bulging, fire, or explosion
Over-Discharge Protection: Disconnects discharge circuit at 2.5V-2.3V to prevent copper foil dissolution and permanent capacity decay
Overcurrent Protection: Detects and shuts down MOS switch when current exceeds safe threshold (e.g., 3A) to prevent overheating
Short Circuit Protection: Cuts off circuit within milliseconds during short circuit conditions to prevent fire or explosion
Temperature Protection: NTC thermistors limit charging/discharging in extreme temperatures (>60℃) for improved safety
Battery Balancing: Active or passive balancing in multi-cell packs ensures consistent voltage across all cells
Applications
Bluetooth Earphones - Compact size fits charging cases for extended listening time
Dash Cam - Stable operation in high-temperature environments for continuous recording
Portable Speakers & Walkie-Talkies - Provides all-day power with reliable performance
Power Banks & Locators - Lightweight design with high charging efficiency
Smart Bracelets & Beauty Devices - Flexible packaging fits irregular spaces with high safety
DIY Electronics Projects - Ideal for upgrading old equipment and extending device lifespan
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 ...