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Lithium Polymer Battery Cell

Lithium Ion Polymer Battery Cell 502035 3.7v 300mAh 350mAh 1.11wh Rechargeable Batteries

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Lithium Ion Polymer Battery Cell 502035 3.7v 300mAh 350mAh 1.11wh Rechargeable Batteries

Brand Name:	RESKY
Model Number:	LP502035
MOQ:	10pcs
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

Capacity:

350mAh

OEM Service:

YES

Electrolyte:

Li(Nicomn)O2

Cycle Life:

500times

Warranty:

12months

Shipping:

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

Lead Time:

Within 3-10 Workdays

Connector:

Jst, Molex....

Specification:

5*20*35mm

Weight:

Supply Ability:

50000pcs/dat

Highlight:

Lithium Ion Polymer Battery 502035

3.7v 300mAh rechargeable battery

350mAh Lithium Polymer Battery Cell

Product Description

Lithium Ion Polymer Battery Cell 502035 3.7v 300mAh 350mAh 1.11wh Rechargeable Batteries

Main Parameters

Parameter	Value
Product model	LP502035
Nominal capacity	300mAh
Product size	5.0x20x35mm
Rated voltage	3.7V
Charging voltage	4.2V
Charging temperature	0°C~45°C
Discharge temperature	-20°C~+60°C
Storage temperature	-20°C~+35°C
Charging current	Standard charging: 0.5C, fast charging: 1.0C
Standard charging method	Charge to 4.25V at 0.5C CC (constant current), then charge with CV (constant voltage 4.2V) until current ≤ 0.05C
Maximum charging current	1C
Maximum discharge current	1C
Protection IC parameters	Overcharge protection: 4.20V ± 0.05V Over discharge protection: 2.7V ± 0.1V

Product Features

High energy density: Half the weight and 40-50% smaller volume compared to nickel cadmium/nickel hydrogen batteries of same capacity
High voltage: Single cell operates at 3.7V (equivalent to three nickel-based batteries in series)
Safety performance: Aluminum-plastic packaging shows visible deformation if internal issues occur, preventing explosions
Long cycle life: Over 500 charge/discharge cycles under normal conditions
Environmentally friendly: Contains no harmful metals like cadmium, lead, or mercury
No memory effect: Maintains full capacity throughout charge cycles
Fast charging: Fully charges in 1-2 hours with proper 4.2V charger
Customizable: Available in thicknesses from 0.8-10mm and capacities from 40mAh to 20Ah

Application Areas

Bluetooth earphones
Smart wearables
GPS navigation devices
POS machines
Power banks
Learning devices
Tablets
Car navigation systems
MP3/MP4/MP5 players
Card insertion speakers
Wireless mice
Xiaomi display screen PSP
Apple peripheral power supplies
Mobile DVD players
Laptop batteries
Wireless monitoring devices
Medical equipment
Various instruments and meters
LED lamps
Traffic signs
Portable small appliances
DIY instruments
Metal detectors

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

Olga

Belarus Apr 23.2025

Helpful (4300)

Recommend Resky as a reliable lithium polymer battery supplier.

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.

Anna

Lithuania Nov 30.2022