I’d put in a relay fuse with a spare in your tool kit. I just bought these gauges to monitor my house and trolling batts, not installed yet though. https://www.amazon.ca/PerfecTech-Voltmeter-Waterproof-Automobiles-Motorcycle/dp/B01LZJZL6R/ref=asc_df_B01LZJZL6R/?tag=googlemobshop-20&linkCode=df0&hvadid=459081477310&hvpos=&hvnetw=g&hvrand=7719460791744150519&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9000995&hvtargid=pla-670607828061&psc=1