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i have one of those portable jump box things, incase your battery ever dies or whatnot. aside from recharging it from an AC outlet, i can also plug it into my cigarette lighter to charge the jumpbox. i found out that if i plug my jumpbox into the power outlet to charge my jumpbox, it doesnt charge. actually, if i shut my truck off and remove my key, and the jumpbox is plugged into the power outlet: my radio will stay on and never shut off. my truck is sponging power FROM the jumpbox rather than feeding power TO the jumpbox.
weird.
weird.