Better security: The adapter is equipped with a fuse and high-quality cable to prevent excessive transient current from damaging the battery and equipment. This battery adapter/cover has been tested to work for 20V Max - batteries. Perfectly compatible : work with for 20V /18V DCB206 - batteries. Made of high quality material,durable and safety to use. Adapter has 14 gauge wire installed, for applications. Easy to install ,locks on you battery . Portable design,convenient to carry and easy to use. Product Name: Battery Adapter with Fuse Compatible: For 18V/20V maximum battery to DIY 2 wiring/cable output Cable specification: 12 AW Colour:B: black Material:plastic Package Contents: 1 x Battery adapter with built-in switch (Not include battery) 3 x 30A replacement fuses Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.