I'm leaving on vacation in a few days. Leaving the
truck home. I don't want to come home to a flat
battery, so should I put a maintenance charger on
it. If so how should I set the charger?
If you decide to buy a battery maintainer just hook it up and plug it in. Do not use a trickle or regular battery charger. They charge all the time and may damage the battery by overcharging it. If you will only be away for a week or two, I wouldn't worry about doing anything.
You can get a trickle charger that will shut off itself when fully charged
You can buy a float charger, not very expensive, all they do is maintain the battery charge, they will not overcharge your battery, they are very small plug into a normal outlet or if your into solar, they have some that will fit on your dash and charge via the power port or cigarette lighter, but you will pay more for these, and you must be certain that the ports are hot even with the key off and removed.
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