The Batavia Battery Adapter turns any 18V MAXXPACK battery into a portable power bank for charging small electronic devices, like your phone or tablet, everywhere. Fitted with two USB ports, enabling charging of multiple items at the same time. It also has a handy flashlight function. Compatible with all 18V MAXXPACK batteries 2.0Ah, 4.0Ah or 5.0Ah. A 2.0Ah battery charges your phone 1-2 times 4.0Ah battery charges your phone 3-4 times 5.0Ah battery charges your phone 4-5 times. Specifications Input 18V. USB Ports 2. USB output 5V / 2.4Ah. Charging Capacity 2.4A per USB port. LED Light 2W, 150-200 lumens.