21700 batteries
21700 Battery Solution
21700 Battery Solutions for Smart Home Appliances
High-capacity 21700 lithium battery packs engineered for cordless vacuum cleaners,
cleaning robots, portable kitchen appliances, air purifiers, smart household devices
and OEM home appliance projects.
High Capacity
快速充电
Custom Pack Design
BMS Protection
3.7V–48V+
Why Choose 21700
Why 21700 Batteries Are Ideal for Home Appliances
Modern home appliances are moving toward cordless, lightweight and intelligent designs.
21700 lithium cells provide higher energy density and stronger output capability, helping
appliance brands improve runtime, product structure and user experience.
Longer Runtime
Higher capacity supports longer operation for cordless vacuum cleaners, cleaning robots and portable household devices.
Compact Pack Design
Fewer cells can achieve the required energy output, helping reduce pack volume and simplify internal structure.
High Power Output
Suitable for high-drain home appliances that require stable instant current, such as vacuum motors and kitchen devices.
Reliable Safety
Integrated protection design can support overcharge, over-discharge, short-circuit and temperature protection.
Typical Application Scenarios
Home Appliance Applications
From cleaning products to smart household terminals, 21700 batteries can be customized
According to device voltage, runtime, discharge current, housing size, and charging method.
Cordless Vacuum Cleaner Batteries
Solution: 21.6V / 25.2V / 29.6V 21700 Battery Pack
- Long operating time for high-end cordless vacuum cleaners
- High current output for powerful suction motors
- Smart BMS protection and fast charging support
Cleaning Robot Batteries
Solution: 14.4V / 21.6V Custom 21700 Pack
- Compact structure for robot vacuum and floor washer designs
- Stable output for continuous cleaning cycles
- Custom connector, PCM/BMS, and housing options
Portable Desk lamp
Solution: 7.4V 2S1P 4500~5200mah 21700 cell
- Ideal for portable blenders, coffee makers, and food processors
- High safety design for household charging scenarios
- Balanced endurance, size, and cost for mass production
Flashlight
Solution: 7.4V 5000mAh INR21700 Pack
- High‑power output for tactical and outdoor flashlights
- Long‑runtime dual‑cell pack for extended illumination
- Custom PCM/BMS and connector options for diverse designs
Temperature monitoring (IoT device)
- Reliable power for continuous temperature sensing
- Stable discharge for low-power IOT operation
- Support custom PCM/BMS and connector options
Power Station
Solution: 3.7V 4000mAh INR21700
- High-density cell for compact power station design
- Stable output for long-duration portable energy use
- Support custom PCM/BMS and pack configuration
常见问题
常见问题
What is a 21700 battery?
A 21700 battery is a cylindrical rechargeable lithium-ion cell with a size of approximately 21mm in diameter and 70mm in length.
Why use 21700 batteries for home appliances?
21700 batteries offer high capacity, long runtime, and strong discharge performance, making them suitable for cordless and motor-driven home appliances.
Can you customize 21700 battery packs?
Yes. Customization can include cell selection, voltage platform, capacity, BMS, wire, connector, casing, label and charging solution.
Which appliances can use 21700 battery packs?
Common applications include cordless vacuum cleaners, cleaning robots, floor washers, portable kitchen appliances, air purifiers, smart home terminals and portable fans.
What information is needed for a custom battery project?
Please provide device voltage, target capacity, operating current, peak current, size limits, charging method, connector type and certification requirements.
获取报价
Looking for the Perfect 21700 Battery Solution?
Whether you are developing cordless vacuum cleaners, cleaning robots, portable kitchen appliances
or smart home devices, we can provide the right 21700 battery pack for your project.