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OEM 3.7V 850mAh Rechargeable Lithium Polymer Battery 603443 LiPo Battery For Medical Devices

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OEM 3.7V 850mAh Rechargeable Lithium Polymer Battery 603443 LiPo Battery For Medical Devices

Brand Name:	RESKY
Model Number:	LP603443
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	T/T,Western Union

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

CE, RoHS, MSDS, Un38.3

Model NO.:

LP603443

Electrolyte:

Li(Nicomn)O2

Rechargeable:

Chargeable

Nominal Capacity:

850mAh

Weight:

10PCS

Shipping:

UPS, DHL, FedEx, TNT, By Air, By Sea, Special Line

Specification:

6*34*43mm

HS Code:

8507600090

Supply Ability:

100000PCS/Day

Supply Ability:

50000pcs/day

Highlight:

3.7V 850mAh LiPo battery

rechargeable lithium polymer battery for medical devices

OEM 603443 LiPo battery cell

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

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Mofak

United Kingdom Dec 5.2025

Helpful (1500)

Good quality! Easy communication, fast response, fast delivery, good supplier! Recommend.

Maroun

France Aug 17.2023

Helpful (7900)

We cooperated several lipo battery cell models, they are working very well. Recommened.

Michael

France Dec 28.2022

Helpful (1w+)

Tested 604070 3.7v 2000mAh lithium polymer battery cell with many charging and discharging cycles, they working very good, capacity keeping very stable.

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products details

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OEM 3.7V 850mAh Rechargeable Lithium Polymer Battery 603443 LiPo Battery For Medical Devices

3.7V 850mAh LiPo battery

rechargeable lithium polymer battery for medical devices

OEM 603443 LiPo battery cell

Overall Rating

Rating Snapshot

All Reviews