Battery standard interface M18 18V lithium battery converter for DEVON power tool 1. [battery] This battery can convert to M18 V lithium battery to DEVON 20V lithium battery, cost saving.2. [Standard Size] Professionally designed, the battery converter is standard size, it can perfectly fit your battery and power tool.3. [safety design] built-in PCBA, which can protect the circuit well, prevent the adapter from being damaged, extend the service life.4. [ABS case] The battery shell adopts high-strength ABS material, which is fireproof, sturdy and not easy to break.5. [Compact Design] The battery converter is compact designed, convenient to carry when working outdoors, easy to operate. Specification: Item type: rechargeable battery Material: ABS Scope of application: suitable for M18V lithium battery converted to DEVON 20V lithium battery Package list: 1 x Battery Note: If not used for a long time, please separate from the battery.