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 Li- batteries.Perfectly : work with for 20V /18V DCB206 Li- batteries.Made of high quality material,durable and safety to .Adapter has 14 gauge wire installed, for high applications.Easy to install ,locks on you battery very .Portable design,convenient to carry and easy to .Product Name: Battery Adapter with Fuse: For 18V/20V maximum battery to DIY 2 wiring/cable outputCable specification: 12 AWColour:B: blackMaterial:plasticPackage Contents:1 x Battery adapter with -in switch (Not include battery)3 x 30A replacement fusesOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.