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21VBattery High Capacity Replacement Lithium-Ion Battery for Cordless Power Tool
- COMPATIBLE WITH TOOLS USING THE SAME INTERFACEThis replacement battery is designed for cordless tools that use the same battery connection interface. Before purchasing, please carefully compare the battery connector and bottom slot of your existing battery to ensure compatibility. Not compatible with all brands or models.
- 4000MAH HIGH-CAPACITY POWER FOR LONGER RUNTIMEBuilt with premium lithium-ion cells, this 21V 4000mAh battery delivers extended operating time for compatible mini chainsaws and cordless power tools. Spend more time working and less time waiting for recharging.
- BUILT-IN SAFETY PROTECTION SYSTEMThe battery management system helps protect against overcharging, over-discharging, overheating, overcurrent, and short circuits. Designed to provide stable performance and reliable operation during everyday use.
- COMPATIBLE REPLACEMENT BATTERY FOR CORDLESS TOOLSDesigned for mini chainsaws and compatible cordless power tools using the same battery interface, including drills, leaf blowers, hedge trimmers, and other outdoor equipment. This 21V lithium-ion battery is a practical replacement for old or worn batteries and a convenient backup power source for extended work sessions. Please confirm interface compatibility before ordering.
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About this item
Longer Runtime & Powerful Performance: This 21V Lithium-ion Battery provides longer battery life and stable power output. Compared with 18V batteries, it significantly reduces charging frequency, delivering stronger and more efficient performance for high-intensity work, helping you finish tasks smoothly without frequent interruptions.
Universal Compatibility: Designed to perfectly replace the original battery, this Lithium-ion Battery works seamlessly with cordless power tools (including cordless high-pressure washers). It is fully compatible with original chargers and outperforms standard batteries in longer running time, higher output power and smoother overall operation.
Built-in LED Power Indicator: The integrated LED power indicator of this Lithium-ion Battery clearly shows the remaining power, allowing you to work efficiently. You can plan your tasks more reasonably, reduce downtime, and the durable high-performance Lithium-ion Battery ensures reliable output and longer service life.
Safe & Durable Construction: The 21V Lithium-ion Battery features a reinforced shell and advanced protection system, which effectively prevents overcharging, overheating and short-circuit issues. It can maintain reliable performance even in harsh environments, with a longer service life to give you complete peace of mind.
Cost-Effective High-Quality Choice: This high-capacity Lithium-ion Battery serves as both a replacement and backup battery, integrating strong endurance, excellent durability and stable power output. It offers superior performance at an affordable price, bringing great value to your daily work and projects.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Heivenok Return Policy
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