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INNOVA 3721 Battery and Charging System Monitor

12 Volt Negative Ground Systems, Lcd Displays, Battery And Charging System Voltage, Battery Charge Level

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9.7
Created with Raphaël 2.1.29.7010
BVR Rating 1,620 reviews

Pros

  • LCD displays measured voltage with a bar graph to indicate battery charge level
  • Built-in head pivots for easy viewing and angle adjustment
  • Easily plugs into vehicles cigarette lighter to monitor battery and charging system voltage

Cons

  • May stop working after a few readings

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Highlights

Analysis of 1k+ reviews for INNOVA 3721 Battery and Charging System Monitor

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BestViewsReviews analyzed 11,055 reviews for 31 products in the Battery Testers category.

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We analyzed a total of 1,620 reviews for this product out of which, 40 reviews were received in the last 6 months.

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The analysis indicates that around 81% reviews were positive while around 16% of reviews had negative sentiment.

BestViewsReviews Ranking and Score for INNOVA 3721 Battery and Charging System Monitor

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This product received a total score of 9.74 out of 10, based on review sentiments and user opinions related to 10 features:

  • Size
  • Accuracy
  • Value for money
  • Overall performance
  • Build quality
  • Design
  • Portability
  • Customer support
  • Easy to read
  • Easy to use
  • Users of this product said


    It gave me the information I needed to get a battery fixed quickly so I didn't have to wait for service in the cold.


    I got going after a cold night and a third jump start but when I plug in the device, it says that my battery is not charging and I have to turn on the heat for 15 minutes.


    This product does a great job but there is a slight delay and I would highly recommend it for anyone who is interested.


    It worked as advertised and it was easy to read all of the readings I matched with myvoltmeter.


    It is very easy to use and read, and it is accurate when I take my car to auto zone.

    Question & Answers

    Q:

    Is it possible to leave it plugged in for 1-2 days?

    A:

    I have to be careful not to leave other accessories plugged in while the truck is off, because this meter would not be a problem left plugged in for a few days.

    Q:

    What is the accuracy of this device measured against a regular volt meter?

    A:

    It's within a couple of tenths of avolt between the alternator voltage and the power port voltage, but even that could be accounted for by voltage drop in the vehicle wiring.

    Q:

    What is the significance of the battery icon at the top of the display?

    A:

    The battery icon at the top of the display tells you when you're testing the battery.

    Q:

    Is there a current draw of this device, either in Amps or in Watts?

    A:

    I leave the car plugged in, but I do watch the numbers climb as the battery gets charged.

    Q:

    I connected this unit and it lights up, flashes all lights, goes to green, and then just shows a 1 in the far left position. Anyone know why?

    A:

    If your battery voltage is too low to operate the meter, you should send it back for a new one.

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