I always use my HP Pavilion at my desk plugged into the AC. Battery changed years ago but never took a charge. Didn't care, never used it portable. Now I would like to use my laptop in my car. Can l get a car charger that will also bypass the battery like when it's plugged into the AC or do I have to either replace the battery so a car charger will work or have to use an inverter in the car?
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