In a power outage, a 9 volt battery can give your phone enough juice to make a call or send a few texts. You may have seen this hack before, but it works especially well in this variation where you ...
Q: How do you build a 9 volt battery connector to the cigarettte lighter to prevent having the car radio, clock and computer reset when I replace the battery? A: Get a cigarette lighter plug. Get a 9v ...
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