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Keith McMillen Batt-o-Meter

73 Customer ratings

4.4 / 5

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Keith McMillen Batt-o-Meter
$27
The shipping costs are calculated on the checkout page.
In stock
1

4 Reviews

A
Does what it says on the tin...
Anonymous 27.01.2016
However, I bought this to plug into my acoustic directly and check the battery... which it doesn't do. You have to take the battery out of the guitar to check it which is extremely annoying since my Taylor seems to hate when I attempt to remove the Battery, its a little shy. Even then it only gives you a percentage and not the amount left in hours.

The Battery reading is the most accurate I've seen so far.

It does work on battery powered pedals so you can plug directly into the pedal and it will give you the time left also.

Overall it doesn't work for the purpose I bought it for but its very handy to have nonetheless.
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A
Hurtigt battericheck
Anonymous 06.02.2017
Mc-Millian Batt-o-Meter, er et godt vΓ¦rktΓΈj til at mΓ₯le batterispΓ¦nding pΓ₯ Bas / Guitar / Pedaler. Jeg har tit op til flere basser med pΓ₯ job eller i studie, og har ikke altid tid nok eller syntes det er for besvΓ¦rligt lige at skulle tage batteri ud af bassen for at checke om det kan holde,, det sparer lidt pΓ₯ batteriskiftene men man undgΓ₯r ogsΓ₯ stress undervejs hvis man eller var i tvivl. Apparatet som er kompakt har et display der viser batteri spΓ¦nding i enten Volt eller Procent, men ogsΓ₯ hvor mange resterende timer det har tilbage. Der vises forskellige koder i displayet, der kan indikere fejl eller visning.

MΓ₯leren fungerer fint pΓ₯ mine 9 volt baserede instrumenter, men er i tvivl om visningen er korrekt pΓ₯ mine basser med 18 volt preamp,, det er sΓ₯ en af fΓ₯ ulemper,, udover det ikke er alle instrumenter man kan mΓ₯le pΓ₯,,, men rigtig praktisk der hvor det virker..

Der kan ogsΓ₯ mΓ₯les lΓΈse batterier af forskellig type pΓ₯ siden af apparatet.
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C
An essential tool for anyone with many instruments and batteries
CDStewArt 14.03.2021
I use this everywhere for all my batteries, instruments, and effects. I even periodically take out all the rechargeable and other batteries around the house to check their charge and either recharge them or get rid of old ones. I honestly have no complaints about this device and I now can't imagine what I would do without it.
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P
Great product
Paul926 21.06.2018
I'm glad to be able to measure the batteries in my guitars and boxes. For some reason it won't work on my Taylor guitar's ES2 electronics.
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M
Indispensable
Mark5150 04.04.2022
Title says it all.
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T
Perfect unit to keep your nerves in check.
Tobias8782 14.01.2014
I've got a few pedals, and active guitars, and on tour, we change batteries all the time, but with this unit, I could monitor the batteries daily, to make sure that I only changed batteries when needed. If you're paying for batteries yourself, you really should own one of these. It will save you a lot of money over the years, and perhaps even more importantly, it will save you the embaressment of having to change batteries on stage.
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M
Keith McMillen Batt-o-Meter
Michael1855 04.11.2014
A really useful tool for quickly checking the charge state within the 9V battery which powers your internal preamp in your bass or guitar. You just insert the jack plug into the socket on your instrument and press one button for an instant read-out.

It also works on other battery types and can test them outside of the instrument too. ;o)
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OM
Not accurate
Only ME 04.10.2025
It will register 9v when measuring a battery externally but then register only 7.8v when the same battery is in the guitar. It does not give me a value at all with my Martin acoustic nor with my Gibson SG. The jack is shorter than traditional jacks. Let me know if I am doing something wrong please!
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N
Dead handy
N!ck 23.05.2018
It can even self check!
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I
great but not perfect
Igharib 27.02.2026
very helpful but unfortunately doesnt work on all basses which is normal due to the different wiring of each instrument. nonetheless, you can still take the battery out of measure it with this device. Overall , I like it a lot and it fits easily in my gig bag.
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Keith McMillen Batt-o-Meter