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3.7V 500mAh Rechargeable Li-polymer Battery Cell 502248 for Handheld Instruments

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3.7V 500mAh Rechargeable Li-polymer Battery Cell 502248 for Handheld Instruments

Brand Name:	RESKY
Model Number:	LP502248
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Blister tray package with paper box
Payment Terms:	Western Union,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

CE, RoHS, MSDS,Un38.3,IEC62133

Model NO.:

LP502248

Electrolyte:

Li(Nicomn)O2

Rechargeable:

Chargeable

Nominal Capacity:

500mAh

Charging Current:

Continuous Discharging Current:

Max Discharging Current:

Weight:

100PCS

Warranty:

1year

Supply Ability:

50000pcs/day

Highlight:

3.7V 500mAh Li-polymer battery

502248 rechargeable battery cell

Li-polymer battery for handheld instruments

Product Description

Factory Li-polymer Battery Cell 502248 3.7V 500mAh 1.85wh Rechargeable Lipo Batteries For Handheld Instruments

Technical Specifications

NO.	Items	Specifications
1	Batteries	3.7V 500mAh LiPo battery
2	Charge voltage	4.2V
3	Nominal voltage	3.7V
4	Nominal capacity	500mAh @ 0.2C Discharge
5	Charge current	Standard Charging: 0.2C Rapid charge: 1.0C
6	Standard Charging method	0.5C CC charge to 4.2V, then CV charge till current ≤0.05C
7	Charging time	Standard: 2.75 hours Rapid charge: 2 hours
8	Max. charge current	0.5C
9	Max. discharge current	1.0C
10	Discharge cut-off voltage	2.5V±0.25V (0.2C)
11	Operating temperature	Charging: 0°C~45°C Discharging: 0°C~45°C
12	Storage temperature	-10°C~+45°C
13	Dimension	Length: 48±0.5mm Width: 22±0.5mm Thickness: 5±0.2mm
14	Drop Test	Dropped from 1m height twice onto concrete ground (no fire, no leakage)
15	Cycle time	≥500 times

Technical Comparison: 3.7V vs 3.8V Lithium Batteries

Different Nominal Voltages

3.7V Lithium Battery: The nominal discharge platform voltage is 3.7V, the full charge voltage is typically 4.2V, and the discharge cutoff voltage is generally 3.0V.

3.8V Lithium Battery: The nominal discharge platform voltage is 3.8V, with some models reaching a full charge voltage of 4.35V. The discharge cutoff voltage is still mostly set at 3.0V or slightly higher.

Higher Energy Density (3.8V)

3.8V batteries typically use advanced cathode materials such as high-nickel ternary lithium batteries, allowing them to store more energy in the same volume or weight, resulting in higher energy density. They are suitable for devices with high battery life requirements.

Cost and Safety

3.8V Batteries: Due to more complex materials and processes (such as high-voltage electrolytes and precision BMS), they are more expensive; at the same time, due to higher operating voltages, they have a slightly higher risk of thermal runaway and require more stringent battery management systems (BMS).

3.7V Batteries: These are technologically mature, have lower costs, and offer relatively easier safety assurance, making them suitable for mass-market products.

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 built-in battery
Apple peripheral power supply
Mobile DVD players
Laptop batteries
Wireless monitoring devices
Medical equipment
Various instruments and meters
LED lamps
Traffic signs
Portable small appliances
Various DIY instruments
Metal detectors
Other digital battery products

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.

Andrius

Lithuania Apr 16.2025

Helpful (3000)

High quality, working well on our portable medical devices, Resky is a reliable supplier for lithium battery

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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3.7V 500mAh Rechargeable Li-polymer Battery Cell 502248 for Handheld Instruments

3.7V 500mAh Li-polymer battery

502248 rechargeable battery cell

Li-polymer battery for handheld instruments

Overall Rating

Rating Snapshot

All Reviews