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Solar Battery Charger and charging a spare car battery?

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  • forgotmyname
    forgotmyname Posts: 32,982 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Cheap inverters are about 30% efficient. Charging through inverters is not recommended.

    I agree on the above the only method is a split charge relay, But if your not allowed to modify the vehicle your a bit stuck.

    How will you clamp the spare battery down? Also mentioned above batteries give off explosive gas when charging how will you vent it?

    Then you need to run wiring to and from the batteries.

    Cheaper to buy a flask or stop at a cafe.
    Censorship Reigns Supreme in Troll City...

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