Adapter Converter Function: This BS18ML-Battery Adapter only can compatible with Bosch 18V Li-ion slide compact battery to make them compatible for milwaukee 18V Lithium-Ion cordless tools. and let you enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools. After install your battery, this converter can replacement for milwaukee-18V-m18 Li-Ion Battery. Applicable Battery Models: The bottom of this adapter is only compatible with Bosch 18v li-ion batteries BAT609, BAT610, BAT611, BAT612, BAT618, BAT6l8G, BAT619, BAT619G, BAT620 etc.. NOTE: NOT Support charging Bosch battery with Milwaukee chargers (please use original charger). Built-in Protection: There is a short circuit protection, Over current protection, Undervoltage protection and Low power consumption. Professionally designed, the converter can be converted without loss.(This adapter can not be used for battery charging.) Quality Material: Made of ABS+PC material, strong reliable and convenient. Small size, easy to carry and store, convenient to use and with good performance. Tips: The Maximum initial battery voltage (measured with no workload) is 20 volts, the Nominal voltage is 18 volts; Size approx. 4.3x2.8x1.8inch. Customer Service: If you have any questions or encounter any problems while using this 18v adapter converter, please contact us proactively. We will reply promptly during working hours and do our best to solve your problem. This Adapter is designed for compatible with Bosch 18V lithium battery. Let your bosch-battery can compatible with milwaukee-cordless tools. Specifications: Material: ABS plastic Size: Approx. 4.3x2.8x1.8inch Color: Black Compatible Model: The bottom of this 18V adapter is only compatible with Bosch 18V lithium battery: BAT609/BAT610/BAT611/BAT612/BAT618/BAT618G/BAT619/BAT619G etc. After install your battery, it can replacement for milwaukee-18V Li-Ion Battery M18 XC 48-11-1815 M18B2 M18B4 M18BX 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828 , 48-11-1840, 48-11-1841, 48-11-1850, 48-11-1852, 48-59-181, 48-59-1850 etc. NOTE Tips: 1. Can not be used to charge the battery of a power tool, and the adapter cannot be plugged into any charger. If you need to charge the power tool battery, use the original battery charger. 2. Disconnect adapter from the battery to prevent battery over discharging if long time no use. Package Included: 1x Battery Adapter (No Battery and Tools) 1x English Manual