21700 Li-ion 3.7V 5000mAh Rechargeable Battery

21700 Li-ion 3.7V 5000mAh Rechargeable Battery.

The 21700 Li-ion 3.7V 5000mAh rechargeable battery is a high-capacity cylindrical cell designed for applications requiring long runtime and consistent power output. With its 21mm diameter and 70mm length, this cell provides greater energy density than standard 18650 batteries, making it ideal for modern electronic devices and high-drain equipment. It features stable performance, low self-discharge, and excellent rechargeability.

Specifications:

• Model: 21700
• Type: Li-ion Rechargeable Battery
• Nominal Voltage: 3.7V
• Capacity: 5000mAh
• Rechargeable: Yes
• Diameter: 21mm
• Length: 70mm
• Standard Charge Voltage: 4.2V
• Discharge Cut-off Voltage: 2.75V (typical)

Features:

• High energy density and long cycle life
• Low self-discharge and stable performance
• Lightweight and compact design
• Compatible with various high-drain devices
• Environmentally friendly and cost-effective over time

Applications:

• Power banks and flashlights
• Electric bikes and scooters
• Portable devices and tools
• RC toys and DIY battery packs
• Emergency lighting systems