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I've boost charged my 12V battery with 24V now the ingition lights have stopped working on my Ford Mondeo?
Wiki User
∙ 13y ago
You have possibly blown the main fusible link by the battery. Check this first, then all the other fuses. Did you turn the key on at all while you were charging with 24Volts? If so you may have damaged some of the electrical control units and possibly the alternator. Charging a 12V battery on 24 volts is a no no, especially while hooked up to the cars electrical system. Many of the control units and computers have direct battery feeds to them for memory purposes so you end up with 24V going to them as well as the battery if everything is still connected while charging. Another possiblity is if you turned the key on while the battery was still being chatged with 24V you have blown all the 12V warning lights in the instrument cluster.
Wiki User
∙ 13y ago
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