OEM 3.7V 850mAh Rechargeable Lithium Polymer Battery 603443 LiPo Battery For Medical Devices
Price:
Negotiable
MOQ:
100pcs
Delivery Time:
7-10days
Brand:
RESKY
Product Description
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
- Smart Wearable & Health: Smart locks, monitors, baby monitors
- 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
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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