I feel I have to say for those not in the know... but these "super capacitor"devices are yet another phantom always present constant current draw on the battery, albeit small. I don't think permanently connecting them to the battery is an improvement, it will actually decrease the amount of time your truck can sit unused before the battery voltage drops to worrisome levels... Sure keep them onboard for if/when you need them but having them permanently attached I feel is actually a reliability downgrade... My comment does not apply to monitoring charge in/out devices, only to this style of "combo" monitoring/jumpstart device... Those capacitor based devices are awesome if properly designed but nothing is free and there is no real benefit to having them permanently attached. If/when your battery gets low, attach them, wait a suitable amount of time and then use them to "jump" the truck.