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Condition: Used: Very Good
Comment: Minor cosmetic imperfection on top, front or sides of item (affecting less than 10% surface area). Item will come in original packaging. Packaging will be damaged.
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INNOVA 3721 Battery and Charging System Monitor

4.6 out of 5 stars 1,288 customer reviews
| 79 answered questions

Price: $12.00 & FREE Shipping on orders over $25. Details
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  • Easily plugs into vehicle’s cigarette lighter or power receptacle to monitor battery and charging system voltage
  • Designed for 12-volt negative ground systems
  • LCD displays measured voltage with a bar graph to indicate battery charge level
  • Color-coded LEDs quickly identify battery’s charge status
  • Head pivots for easy viewing and angle adjustment
12 new from $12.00 1 used from $9.60
$12.00 & FREE Shipping on orders over $25. Details In Stock. Ships from and sold by Amazon.com.

Frequently bought together

  • INNOVA 3721 Battery and Charging System Monitor
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Total price: $17.65
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The INNOVA Battery and Charging System Monitor displays the condition of your battery and charging system instantly. It protects the engine computer and 12-volt accessories from damaging surges when jump starting or recharging. Easily plugs into the vehicle's cigarette lighter or power receptacle to monitor battery and charging system voltage. The LCD screen displays the measured voltage with a bar graph to indicate battery charge level and the color-coded LEDs quickly identify the battery's charge status. The head pivots for easy viewing and angle adjustment.


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on November 29, 2014
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on February 25, 2016
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This item: INNOVA 3721 Battery and Charging System Monitor