21V 4.0Ah Large Lithium Replacement Battery Cordless Brush Cutter/Weed Eater/Weed Wacker/Electric Brush Cutter/Stringless Grass Trimmer/Lawn Trimmer/Cordless String Trimmer/Mini Chainsaw

21V 4.0Ah Large Lithium Replacement Battery for Weed Wacker/Weed Eater/Grass Trimmer/Cordless String Trimmer /Lawn Trimmer/Mini Chainsaw by AHPUCEP Suit For Our Grass Trimmer, It is recommended to check whether the battery socket is the same as your machine before making order. Battery Type:Lithium_ion Capacity: 4000mAh Voltage: 21Volt Charging time: 3-4hours, the indicator Green light(on your charger) will be always on when battery fully charged Using time: 40-60minutes Package Includes:1 x Replacement 21V 4.0Ah Large Capacity Battery Important safety instructions for lithium batteries ： Before using this lithium battery, please carefully read and follow the following safety instructions to ensure your safety and extend the service life of the equipment. 1.Before purchasing a battery, please ensure that your battery parameters and appearance are exactly the same as ours. Our battery voltage is 21V. Do not use it for any mismatched power tools,, as it may cause harm to personnel and property.Only use a 21V charger for charging. We recommend using our store's 21V charger（asin: B0BGM9B2WM) to charge it. You can contact customer service to make a purchase. Using any other incompatible charger may cause danger and damage to the device as well as to individuals. 2.Advise use our store's charger for charging（asin: B0BGM9B2WM) . Do not use any other brand of charger to charge our lithium batteries. Using any other brand of charger may cause danger and damage to the device and individuals and property. 3. Do not disassemble or damage the battery to avoid severe impact, puncture, or copression. 4.Do not put the battery into fire or expose it to high temperature environments, such as near fire sources, heaters, etc. Do not expose battery to direct sunlight for long periods of time . 5.Avoid battery contact with water or use in humid environments to prevent short circuits and damage.Do not store the battery in a damp environment to prevent damage to the battery. 6.Do not place metal objects on the battery to avoid short circuits. 7.When charging, please use the original charger（ASIN:B0BGM9B2WM） and follow the instructions for using the charger. 8.During use or charging, if abnormal heating, smoking, deformation, or odor is found in the battery, it should be immediately stopped and kept away from the battery. 9.Please store the battery in a dry and well ventilated environment, away from flammable and corrosive substances. 10. This battery is not suitable for use by individuals with decreased physical, sensory, or intellectual abilities, or lacking experience and knowledge, unless they have learned how to use the battery under the supervision or guidance of personnel responsible for their safety. usage method 1.When installing the battery, it should be tightly inserted to avoid loosening and preventing it from working. When the battery is fully inserted and there is no gap between the battery and the base, you will hear a clear clamping sound. Ensure that the battery is correctly installed on the lawn mower and securely cnnected. 2. Before use, check if the battery is fully charged. If the battery is low, use the orginal charger for charging.（ASIN:B0BGM9B2WM） 3. When charging, first insert the charger plug into the battery charging port, then plug the charger into the power outlet. During the charging process, the indicator light on the charger may display the charging status. 4. When the charger indicator light shows that the battery is fully charged(Light is green), unplug the charger from the power outlet first, and then remove the charger plug from the battery. 5. As it is not allowed to provide excessive power to the battery during transportation, the battery is only about 60-70% charged. Therefore, when you receive the product before using it for the first time, you must fully charge the battery so that it can work for a longer period of time. Charge the battery before it runs out to extend its lifespan. When the charging plug is green, it is fully charged. Charging instructions: 1. Please use the dedicated charger （ASIN:B0BGM9B2WM）in our store to charge the battery. Do not use any other brand of charger to charge the battery, otherwise it may cause harm to personnel and property. 2. When inserting the charger into the battery charging port, ensure that the plug is tightly connected to avoid looseness. 3. Charging should be carried out in a dry and ventilated environment. 4. Avoid charging in high or low temperature environments. 5. The charging time should be in accordance with the specifications of the charger and battery, and should not be overcharged. Storage method: 1. If the battery is not used for a long time, it is recommended to fully charge it. 2. Store in a dry and cool place, avoiding direct sunlight and high temperature environments. 3. Charge the battery at regular intervals (such as 3 months) to prevent over discharge and damage to the battery. Maintenance and Precautions 1. Keep the battery clean and avoid dirt and debris from adhering to the surface of the battery. 2. Regularly check whether the battery casing is damaged or deformed. If there are any abnormalities, stop using it and contact after-sales service. 3. Avoid charging after the battery is completely depleted, and try to charge it promptly when the battery is low. 4. Follow local environmental regulations, dispose of waste batteries properly, and do not dispose of them casually. 5. If the lawn mower is not used for a long time, the battery should be removed and stored separately. 6.During use and storage, avoid short circuits between the positive and negative terminals of the battery. 7. Do not repair or modify the battery yourself. If there are any problems, please contact professionals or the manufacturer's customer service.

• 【Widely Compatible Replacement Battery】The 21V lithium-ion battery features a universal interface, perfectly compatible with many cordless power tools,making it a great replacement for damaged or worn-out batteries. It fits a wide range of cordless tools that share the same connector. including mini chainsaws,electric drills, leaf blowers, lawn mowers,and more.Please confirm that your tool's bottom connector matches before purchase.
• 【Large21V 4.0Ah Capacity Battery-Better Battery Life】：Large21V Lithium batteries is provided with UN and MSDS Certification,which delivers fade-free power with no memory loss after charging,Lithium battery with longer worktime and better battery life , The additional battery making your yard work always ready to use without restriction and more efficient and convenient. Please Use it after battery fully charged.
• 【Self-Overload and Temperature Protection】 :The battery can be used Up to 60 minutes of runtime on a fully charged battery,Charger completely charges battery in 2-3 hours or less.Lithium-ion batteries with self-overload and temperature protection provide a much longer battery life.
• 【Battery Details:】 Battery Type:Lithium_ion,Capacity: 4000mAh,Voltage: 21Volt,Charging time: 3-4hours, the indicator Green light(on your charger) will be always on when battery fully charged, Using time: 40- 60minutes.
• 【Package Include:】1 X Replacement 21V 4.0Ah Large Capacity Battery