Bottom of converter: Compatible with Makita BL series 18V lithium ion batteries; Converter top: compatible with Bosch BAT series 18V lithium battery power tools; (Bosch power tools must be BAT622; BAT609; BAT618G; BAT609G; BAT618; 2, 607, 336, 170; 2, 607, 336, 092; Compatible with lithium ion battery models ） Makita battery at the bottom of the converter: BL1815 BL1815B BL1820 BL1820B BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860 BL1860B BL1845 BL1890 BL1890B, 18V Lithium battery...... Makita 18V lithium battery can be converted to Bosch 18V lithium battery tool with this converter. Get your Makita 18V lithium battery to share with your Bosch 18V lithium battery tool. Support Makita 18V lithium battery with Bosch charger with this converter! Compatible Bosch charger models: AL 1814 CV; AL 1820 CV; AL 1860 CV; GAL 1880 CV; GAL v 18-20; GAL 18V-40 Package Included: 1x Adapter (Only Adapter, No Battery) WARNING: Make sure that the battery is fully inserted for normal use Please do not force into the battery pack, if the battery pack can not be installed, the installation method may be wrong This product is only compatible with the tools, not compatible with the charger, Do not use the adapter to charge the battery When you need to charge the battery, remove the converter