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Rechargeable Lipo Batteries 502030 3.7v 250mAh Lithium Ion Battery Cells For Audiovisual
Product Specifications
NO.
Items
Specifications
1
Batteries
3.7v 250mah lipo battery
2
Charge voltage
4.2V
3
Nominal voltage
3.7V
4
Nominal capacity
250mAh 0.2C Discharge
5
Charge current
Standard Charging: 0.5C Rapid charge: 1.0C
6
Standard Charging method
0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C
7
Charging time
Standard Charging: 2.75hours(Ref.) Rapid charge: 2hours(Ref.)
8
Max.charge current
1.0C
9
Max.discharge current
1.0C
10
Discharge cut-off voltage
2.75V(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: 50±2mm (not including tabs) Width: 20±0.5mm Thickness: 5±0.2mm
14
Drop Test
The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage
15
Cycle time
≥500times
Main Features
Ultra-Thin & Compact Form Factor: With dimensions of 5mm (thickness) * 20mm (width) * 30mm (length) and a typical weight of 4-6g, it features an ultra-slim, miniaturized design--perfect for devices with strict space constraints.
Balanced Electrical Performance: Boasts a nominal voltage of 3.7V (working voltage range: 3.0V-4.2V) and 250mAh capacity (0.925Wh energy), striking a balance between runtime and size.
Reliable Safety Protection: Adopts a soft-package lithium battery structure with a built-in protection IC. It effectively prevents overcharge, over-discharge, short circuits, and overcurrent.
Durable Cycle Life: Supports 300-500 charge-discharge cycles (under standard conditions). After 300 cycles, it retains over 80% of its initial capacity.
Low Self-Discharge Rate: Loses only 5%-8% of capacity per month at room temperature, making it suitable for devices that require occasional use or long standby.
Wide Environmental Adaptability: Operates stably in a temperature range of -10℃-60℃ (discharge) and 0℃-45℃ (charge).
Main Applications
Mini Wearable Devices:
Children's basic smartwatches
Mini health monitors (e.g., portable oximeter, heart rate trackers)
Smart jewelry (e.g., mini smart bracelets, smart rings)
IoT Micro Sensors:
Smart home mini sensors (e.g., door/window contact sensors)
Industrial mini sensors (e.g., micro pressure sensors)
Agricultural micro sensors (e.g., mini soil moisture sensors)
Small Consumer Electronics:
Wireless earbud charging cases
Mini digital devices (e.g., portable mini voice recorders)
Portable mini LED lights
Medical & Emergency Gadgets:
Fingertip mini blood glucose meters
Emergency mini devices (e.g., portable mini alarms)
Mini Toys & Models:
Micro remote-controlled (RC) toys
Electronic educational toys
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 ...