1、Battery Adapter: Can convert for DCB200 DCB203 DCB204 DCB206 20V and other battery to for STANLEY FMC687L FMC688L and for craftsman CMCB202 CMCB204. 2、Stable in Power: Comes with wide compatibility, the battery adapter can provide safe and stable power supply for various power tools. 3、Perfect Fitting: Ensuring perfect match between the battery and the converter, the firm connection is not likely to loosen, very safe. 4、Using Great ABS: The application of premium ABS material and excellent workmanship, the reliable conversion kit has long service life. 5、Easy to Install: Designed to have a compact size and a light weight as well, the battery adapter is very easy to install in minutes.