Save Money Testing Your Own Battery

A quick way for our non mechanic friends to check their battery and alternator and avoid large shop fees. Not something I would recommend professionally trained technicians use but great for a DIY check in personal vehicles.We encountered an interesting problem with my wife's Lexus where the windows and sunroof started acting erratically. This video shows our process of diagnosing a potential low voltage issue. Using an automotive battery tester, we check the car battery to see if a dead battery is causing the computer to malfunction, aiming for a quick repair.
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