Feature:1. Excellent ABS Material: This battery adapter replacement is made of excellent ABS material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life.2. Easy To Install: The power tool battery converter is designed for easy installation. You can simply insert your 18V battery into the bottom of the converter and attach the converter to your for Worx 20V tool. The converter securely locks the battery in place, ensuring a stable connection.3. Good Compatibility: With this lithium battery converter, you can expand the compatibility of your for Worx 20V tools. It allows you to use 18V batteries, which are widely available and compatible with various power tools. No need to invest in a new set of tools.4. Compact And Portable: This battery dock power connector is made of excellent ABS material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life.5. Wide Application: This cordless power tool battery adapter has a wide range of applications and can be used at home, warehouse, factory and so on.Specification:Item Type: Lithium Battery AdapterMaterial: ABS1. Converter Top: The top of the adapter is compatible with for Worx 20V cordless power tools (can use for WG151, for WG251, for WG540, for WG891, for WG151, for WG151.5, for WG800.1 power tools). Corresponding lithium battery for Worx 20V for WA3520, for WA3525, for WA3575, for WA3578 power tool battery2. The bottom of the Converter: Applicable battery models: For BL1815, For BL1815B, For BL1820, For BL1820B, For BL1830, For BL1830B, For BL1840, For BL1840B, For BL1850, For BL1850B, For BL1860, For BL1860B, For BL1845, For BL1890, For BL1890B and other 18V Lithium Battery x 1 ( Shipped Without Battery ).Package List:1 x Lithium Battery Adapter1 x ManualNote:1. The adapter has a guard plate, when not in use for a long time, separate the battery from the adapter to avoid damage to the battery.2. This converter does not support 18V lithium batteries and for Worx 20V lithium batteries share charger.