Features 1、APPLICABLE SCENARIO: Use a backup 18V battery pool as an emergency power source through this USB charger adapter to charging small electronic devices such as phones, tablets and other USB devices when there is no AC power 2、SAFE MATERIALS: The power tool battery charger adapter is made of quality ABS and PC materials for durability. Built in multiple protecting to ensure safe use 3、APPLICABLE MODEL: This USB charger adapter is perfectly compatible with for Maximum series 18V battery, BL1815 BL1820 BL1530 BL1840 BL1850 BL1860 and other batteries 4、MAIN USES: Power tool battery charger adapter is used for transform your battery into a portable charger, provide great convenience for your life 5、USB PORTS: Power tool battery USB charger adapter come with two USB outlets, with fast charging interfaces, suitable for camping, hiking, etc. Specification Item Type: Power Tool Battery Charger Adapter Material: ABS USB Output: DC 5V 2.1A Quick Charging USB Output: DC 5V 3.1A Applicable Battery: 1 x 18V li ion battery and other interface battery (BL1815 BL1820 BL1530 BL1840 BL1850 BL1860 battery)(not include) Compatible Battery: Compatible with 18V B series lithium batteries, such as BL1850B (197285-8), BL1840B (197270-1), BL1830B (197602-2), BL1430B (197618-7), BL1820B (197487-6); Compatible with BL1850, BL1840, BL1440 (196391-6), BL1415 (194560-3), BL1815N (196781-3) Package List 1 x Adapter