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OEM 3.7V 850mAh Rechargeable Lithium Polymer Battery 603443 Lipo Battery For Medical Devices
High-performance rechargeable lithium polymer battery designed for LED lamps and various small electronic devices.
Technical Specifications
Item
Specification
Battery Type
3.7V 850mAh LiPo Battery
Charge Voltage
4.2V
Nominal Voltage
3.7V
Nominal Capacity
850mAh (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 Rapid: 2 hours
Max. Charge Current
1.0C
Max. Discharge Current
1.0C
Discharge Cut-off Voltage
2.75V (0.2C)
Operating Temperature
Charging: 0°C ~ 45°C Discharging: 0°C ~ 45°C
Storage Temperature
-10°C ~ +45°C
Dimensions
Length: 43±2mm Width: 34±0.5mm Thickness: 6±0.2mm
Drop Test
1m drop onto concrete twice - no fire, no leakage
Cycle Life
≥500 cycles
Advantages of Li-Polymer Batteries vs 18650 Cylindrical Batteries
Ultra-flexible shape & size
Lithium polymer batteries come in slim, thin, rectangular pouch designs, while 18650 batteries are fixed cylindrical shapes. Li-Po can be customized to almost any thickness and size, making them ideal for slim, compact, and wearable devices.
Better space utilization
Pouch-type li-polymer batteries fit more efficiently into irregular device spaces, improving energy density per unit volume compared to cylindrical 18650 cells.
Lighter weight
Li-polymer batteries use aluminum-plastic film packaging instead of heavy metal cans, resulting in lower weight and higher energy density for portable products.
Lower risk of swelling & leakage
Soft-pack structure reduces internal pressure buildup. Li-polymer batteries are generally safer and less prone to leakage or hard-case deformation than cylindrical batteries.
More stable discharge in thin devices
Suitable for small electronics such as smartwatches, earphone cases, beauty devices, and thin GPS trackers where 18650 is too large.
Applications
Bluetooth Devices: Speakers, headsets, remote controls
Beauty & Personal Care: Facial brushes, beauty devices, hydrating devices
Personal Care Appliances: Electric toothbrushes, shavers, hair clippers
Entertainment & Office: MP3/MP4 players, portable projectors, wireless mice
Lighting & Outdoor: Nightlights, camping lights, fishing lights, mini power banks
Pet Equipment: Dog trainers, pet trackers
Advantages of Lithium Polymer Batteries
Flexible shape customization
Lightweight & slim profile
High safety with soft pouch structure
Low self-discharge rate
Long cycle life
No memory effect
Stable discharge performance
Suitable for miniaturized smart devices
Easy to integrate with wires & connectors
Full certifications available: IEC62133, UN38.3, CE, RoHS
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 ...
