Feature:1. Firmer Fixing: Comes with built in battery lock that is made from premium ABS material, which is used fixing assembled battery.2. Perfect Match: Non slip and anti loosening battery and tool buckle ensures perfect match of battery and tool, safe and reliable.3. Practical Use: Suitable for 18V lithium battery to convert to for 18V and 20V tools, providing stable power for working.4. The Good Chip: Adopting great chip, the battery adapter enables higher current conversion efficient, durable for long term use.5. Easy to Install: Just move the power socket connector gently into the slot, and then install the battery into the connector.Specification:Item Type: Battery AdapterMaterial: ABSBase: Compatible with for 18V lithium battery. Top Mount: Compatible with for 18V and 20V tools. Package List:1 xBattery AdapterNote:1. This product cannot be used to charge power tool batteries. 2. Please separate it from the battery if it is not in use for a long time.