SHINTYOOL 21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower

Specifications: Type: Battery Rated Voltage: 21V Power Input: 400W Charger Input:110V 50Hz-60Hz Number of Batteries:1 Cells Per Batter: 10 Battery Weight : 20 OZ   Specification: Type: Battery power adapter Material: ABS Plug type: US Input voltage: 110-240V 50HZ/60HZ Interface: about 5.5*2.5mm/0.2*0.1in Output current: 1A Weight: 9 OZ  Note： 1. Do not try to open the battery. 2. Protect the battery against continuous intense sunlight fire water and moisture. 3. Do not damage the battery with sharp objects. 4. Do not discard this product at will. 5. Overcharging the device will reduce the life of the battery unplug it from the charger in time to avoid overcharging. 6. If the battery does not last 10 minutes it may be caused by overheating. Please wait for 5 minutes for the battery to cool down. Battery Main