Killed battery

After installing the unit I checked both cars to see what it would turn up. Nothing. I had thought it would give me a thumbs up or OK or something about the systems it checked. Within a few days the battery turned up dead. Surprise. I knew the battery was weak and not new. I charged the battery and drove several more days. Yes again the battery turned up dead again. So I charged the battery. Drove again and then I checked the unit with my phone before turning the key on. It said the battery was weak, which I knew and began to realize the unit was staying hot all the time with the ability to bluetooth to my phone. So, if you have a weak battery or do not drive frequently, you might not want to leave the unit plugged in all the time. I keep mine in the glove box.

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