Originally posted by tondij
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More batteries is the easiest and maybe least expensive way to improve your capacity, but of course it increases the time you need to be plugged in to recharge them when they've been run down (to about 50%, no more). There are simple mathematical ways of calculating how much battery capacity you need for the things you want to run... look on the web or post here if you need help with that.
Note that your truck at best only trickle-charges the battery(ies). It cannot usually be relied upon to restore daily power usage (especially in cold weather) of even one battery, let alone several of them. Not even if you're driving hours every day. Shore power or a generator or solar will typically be required to keep multiple batteries topped up.
We really like this popular generator. It's dual fuel (runs on propane or gas) and has enough power to charge batteries and run most equipment (not all at the same time) in our trailer.
https://www.championpowerequipment.c...fuel-inverter/
Good luck with your choices.
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