Using this Mychron 5 Battery Block - Off Plate is easy. First, if you don't want to use the rechargeable battery, remove it from your Mychron 5 gauge. Then, attach the battery block - off plate with the included bolts. Next, connect the 12 - volt battery harness to the setup and your onboard battery. When using, make sure all connections are secure to avoid power interruptions. For maintenance, keep the plate clean and check the bolts regularly to ensure they are tightened. Avoid exposing the plate to extreme temperatures or moisture to prolong its lifespan.