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Keith McMillen Instruments Batt-O-Meter Battery Tester   

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Plug the Batt-O-Meter Battery Tester into virtually any battery-operated device with a 1/4" jack input and find out if and when to change its battery...Read More

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OVERVIEW

Shows the hours of life remaining on your stomboxes and active pickups without removing the battery.

Plug the Batt-O-Meter Battery Tester into virtually any battery-operated device with a 1/4" jack input and find out if and when to change its battery. Stop wasting time and money; don't guess when to change batteries; know with the Batt-O-Meter.

The Batt-O-Meter Battery Tester looks inside your active pickup instruments and 9-volt devices to measure voltage and remaining hours of use. Fast, accurate, and easy to use, the Batt-O-Meter: saves you from risk and stress of dead batteries before a performance. You'll also save money by extending the life of each battery, and save time by checking battery life before taking things apart. Feel better knowing that you're helping the environment by discarding fewer batteries.

The Keith McMillen Instruments' Batt-O-Meter also checks hard-to-reach batteries by plugging into the 1/4" input found on most guitars, basses and effects pedals.

Use the Batt-O-Meter battery tester to quickly and accurately measure how many volts a battery is delivering, the number of hours left before the power runs out, and the remaining life in any 1.5-volt or 9-volt battery. Just plug the gold-plated Power Probe into the 1/4" input on most instruments and effects pedals to test the life remaining in hard-to-reach batteries.

Test more battery types with increased precision with the Batt-O-Meter's convenient slide switch that differentiates between alkaline, rechargeable, and carbon zinc batteries. The right-angle, 1/4" jack can check a hard-to-reach battery still inside your equipment.

And, yes, Mr. Smarty Pants, the Batt-O-Meter performs a self-test of its internal battery and displays the percentage of battery life left.

FEATURES
SPECIFICATIONS

Batt-O-Meter Battery Tester

  • Requires 9-volt battery; not included
Reviews
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Review Snapshot

by PowerReviews
Keith McMillen InstrumentsBatt-O-Meter Battery Tester
 
2.8

(based on 17 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (5)

14%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Quality oriented (7)
    • Primary use:
    • Personal (5)
    • Was this a gift?:
    • No (7)

Most Liked Positive Review

 

Great product, simple and very valuable

Very simple to use and very helpful to have. I own a pedal board with a few different devices that I sometimes like to pull off and use individually. Among these are a boss...Read complete review

Very simple to use and very helpful to have. I own a pedal board with a few different devices that I sometimes like to pull off and use individually. Among these are a boss tuner and a dunlop wah. The batt-o-meter tests them and my other pedals accurately. It's good to know that I don't have to shoot in the dark and guess when I need to change batteries!I also use the batt-o-meter as a battery tester. You can test AA and other batteries with it, so I'll use it to check the juice on my remote control batteries or whatever else around the house. The device is very small so it's easy to use pretty much anywhere. Great device, definitely worth the money.

VS

Most Liked Negative Review

 

Doesn't work in all active basses

Purchased this to check the battery in my active bass (Ibanez SR505). Worked fine on external batteries but gave an error when trying to check the battery in my bass. Exchanged it for...Read complete review

Purchased this to check the battery in my active bass (Ibanez SR505). Worked fine on external batteries but gave an error when trying to check the battery in my bass. Exchanged it for another - same problem. I have heard through the grapevine that this does not actually work on all active basses. Disappointing - I'm going to return it.

Reviewed by 17 customers

Displaying reviews 1-10

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1.0

Someone needs to make a better version of this thing!

By Angel

from Chicago

About Me Quality Oriented

Verified Reviewer

Pros

  • Somewhat Helpful

Cons

  • Cheap Quality
  • Not Durable
  • Not Worth The Price-point

Best Uses

  • Travel

Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

I bought my first Batt-O-Metter and when it arrived it was already broken from the battery connector. Musician's Friends was kind enough to replace it. They are really cheap made and lack overall quality. I currently Have 2 of these things one for giging and the other one to stay at home as a back up. I don't know how accurate this because with some batteries there is an ERROR display and with other batteries, when checking a functional battery, it marks a different percent each time you check it. I really hope that it gets an upgrade or that another company decides to make a better version of this thing.

  • Primary use:
  • Personal
  • Was this a gift?:
  • No

Comment on this reviewHelp Icon

 
3.0

Does What It Says.....Kinda :/

By C_Scott

from Detroit, MI

About Me Quality Oriented

Ask me a question

Pros

    Cons

      Best Uses

      • Emergency Equipment
      • Having Around The House
      • High-End Equipment

      Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

      Works on both my active Fender Jazz, and Precision basses, but not on my Stingray, or Alembic. I don't use pedals or effects, and bought this strictly to test the batteries in my basses. Fortunately, it works on the Fenders, which are what I use the most. The Batt-O-Meter is a great idea, but it should work on any and all devices, or instruments you plug it in to. If it did, then I would give it a "5 Star" rating. I would cautiously recommend this to a friend.

      • Primary use:
      • Business
      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

       
      3.0

      Doesn't work in 2 of my 4 basses

      By C_Scott

      from Detroit, MI

      About Me Quality Oriented

      Ask me a question

      Verified Buyer

      Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

      Just as so many others have said, this does not work on all active basses. It doesn't work on my Alembic Spoiler, or my Ernie Ball Stingray. It does, however, work on both of my Fender's which are the ones I gig with the most, so hopefully it will be worth it. Maybe it works well with pedals, (I don't use any), but I would think with all the negative press Keith McMillen is getting on his product from guitar/bass players, he would go back to the drawing board, and get it right.

      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

       
      1.0

      Works.......NOT!!!!

      By lwa1609

      from New Mexico

      About Me Quality Oriented

      Pros

        Cons

        • Inconsistent Performance

        Best Uses

          Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

          Bought this to easily check the battery in my Gibson Songwriter which is buried inside. Oops, doesn't work on the Gibson. Nor does it work on 6 of the 7 guitars I own! Taylors, Gibsons, Martins, or Pimentel. Only one guitar, a Yamaha CPX15S with an LR Baggs preamp proved to work correctly with the Batt-O-Meter! Also, doesn't work with my para DI. About all it is good for is a hard to use voltmeter if you take the battery out!!!!
          Really disappointed!

          • Primary use:
          • Personal
          • Was this a gift?:
          • No

          Comment on this reviewHelp Icon

           
          3.0

          Pretty good product.

          Profile Image

          By Bassman E

          from Laurel, MD

          About Me Quality Oriented

          Ask me a question

          Verified Buyer

          Pros

          • Able To View Battery Life

          Cons

          • Can't Insert All The Way

          Best Uses

            Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

            I was disappointed when I first got the meter because when I pushed it in all the way in my guitar, I didn't give a reading. However after reading another review from another customer who bought the meter, I discovered that if I partially pushed it in, it would give a reading although the readings aren't consistent. I'm hoping they are close enough to be fairly accurate.

            • Primary use:
            • Personal
            • Was this a gift?:
            • No

            Comment on this reviewHelp Icon

             
            2.0

            Disappointed

            Profile Image

            By Bassman E

            from Laurel, MD

            About Me Quality Oriented

            Ask me a question

            Pros

            • none

            Cons

            • Have To Take Battery Out

            Best Uses

            • Not Worth The Money

            Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

            I just got this meter and I was disappointed because I thought I could just plug it into my active Soundgear 405QM bass guitar and get a reading on the 9-Volt battery. As it turned out, I have to take the battery out of the guitar and manually test the battery with the meter. I bought this item for convenience and it certainly is not convenient.

            • Primary use:
            • Personal
            • Was this a gift?:
            • No

            Comment on this reviewHelp Icon

            (3 of 3 customers found this review helpful)

             
            1.0

            Doesn't work in all active basses

            By Tim

            from Santa Rosa, CA

            About Me Quality Oriented

            Verified Buyer

            Pros

              Cons

              • Inconsistent Performance

              Best Uses

                Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

                Purchased this to check the battery in my active bass (Ibanez SR505). Worked fine on external batteries but gave an error when trying to check the battery in my bass. Exchanged it for another - same problem. I have heard through the grapevine that this does not actually work on all active basses. Disappointing - I'm going to return it.

                • Primary use:
                • Personal
                • Was this a gift?:
                • No

                Comment on this reviewHelp Icon

                (2 of 2 customers found this review helpful)

                 
                2.0

                works sometimes

                By Zippy-9IfRS

                from Illinois

                Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

                I expected this thing to work on all my guitars but it does not. I watched a vid about this problem on youtube and figured it was them and would not be me. I was wrong.
                I have 5 electic acoustic guitars and it works on two of them--one other one also but only if I wiggle it to a perfect spot. I like the idea of it but the contact is not good enough to touch what it needs to touch on all guitars.
                It needs improvement but after all this time (two years) I have seen no desigh changes.
                So, I would only recommend it if you can accept being able to check some guitars and not others. Which ones? Who knows!

                Comment on this reviewHelp Icon

                 
                2.0

                Kind of sort of works

                Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

                Bought so I'd be for-sure for-sure that i dont need to change a battery during a gig. This unit does not gain my confidence. Gave me two totally different readings on my Modulus 9V bass preamp. Did not work at all on my acoustic electric guitar. Seems to work on some other instruments, but I feel like i dont really know the score with this device. Seems like it needs a tech revision. Great idea though.

                Comment on this reviewHelp Icon

                 
                5.0

                definately worth it.

                By PleaseMrBassMan

                from Los Angeles, Ca

                Comments about Keith McMillen Instruments Batt-O-Meter Battery Tester:

                as a musician and A/V tech responsible for a couple dozen battery powered units, I was tired of all the screwing and unscrewing and time spent testing gear.I was skeptical at first, but the Batt-o-meter is so handy and intelligent! I am really impressed. It even tells you how many hours are left in the battery! really cool. super useful.since I started using it last month, I've already saved myself more than the cost of the unit in still-useful batteries.also, better battery conservation is good for the environment. so get a Batt-o-meter! buy less batteries!save time! save the world! very cool.

                Comment on this reviewHelp Icon

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