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Q: Battery keeps draining on 2007 Hyundai Tucson

Battery and alternator tests good but battery drains. New battery two months ago thought that was issue because one cell tested bad but issue happened before replacing battery and is happening again for first time since battery replaced two months ago.
does tape in tape player when car not running drain battery or what could be draining battery
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I had the same thing happen with my 2006 Tucson -- after replacing the battery I would again have problems starting the car or the battery would just die -- eventually I was told it was the radio draining the battery even when the car and radio were off!!! The dealer replaced my stereo system with a new one and I have been fine since! Hope this helps ;)
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