• Easy to use battery / alternator tester.
• Plug in to the 12V cigarette lighter in your car, the LED indicators will show you the status of your battery and alternator.
• 3 LED indicators to show the battery condition: weak, normal or strong.
• 3 LED indicators to check the status of the alternator voltage: low, normal or high.
• Works on any 12 volt system, compact design for easy storage.
• Compact size, a handy item for your glove box so you know right away if the problem you have is related to the battery or alternator.
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