Batt-O-Meter Guitar Pedal and Preamp Battery Tester Review

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(More customer reviews)I heard about this gizmo from a buddy, and since I need a battery tester anyway (and here's one made just for Musicians!), I bought one for $30. I have 3 pedals I gig with, plus active EMG PU's in my ESP guitar + a PU in my Takamine. I just plugged them all in, no more screwdrives, or hasseling to remove the battery. I found all were okay, except my Boss Delay, which was getting low, so I replace it.
Here's the cool part... I had 11 batteries in a baggie that was unsure of. Of the 11, all but 2 were above 75% ! SO I replaced the battery in my Boss with one from my baggie, and I still have a good stach of batteries that until now, I was afraid to trust.
I showed it to my bass player at the gig a few days later, and we tested his Warwick... this thing works like a champ and is an essential tool for anyone that depends on batteries in their set-up.
I love that the BOM actually puts a load on your electronics...so it knows what the device is trying to draw out of the battery. Pretty slick...it can tell you exactly how long THAT battery will last in THAT device. Of course you can test loose batteries too.
I hope the guy who invented this thing is laying on a beach sipping Pena Coladas... it's just plain cool. Mine now lives permanently in my gig bag.

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The Batt-O-Meter from Keith McMillen Instruments is the first battery tester for musicians. Test the remaining hours of battery life and voltage of 9 volt batteries while they are still inside gear through a 1/4-inch plug. The Batt-O-Meter works with almost any active instrument pickup or effects unit (stompboxes and other floor effects) that requires a 9 volt battery to operate, and is turned on when a standard 1/4-inch cable is plugged into it. The Batt-O-Meter works by automatically placing the battery under an appropriate load to simulate real world usage. A micro-processor within the unit allows the device to intelligently determine the different loads that can be put on the battery and calculate the power in hours remaining. This eliminates the need for extra buttons and adaptors, and makes the Batt-O-Meter simple to use. The Batt-O-Meter can test stand-alone batteries: 9V, 1.5V (AAA, AA), and 3V. It works with Alkaline, Rechargable, and old school Carbon-Zinc batteries. The Batt-O-Meter requires its own 9 volt for operation, which it can self-test. Located in Berkeley, California, Keith McMillen Instruments (KMI) is an intimate company that makes innovative technology for string instruments. A portion of each KMI sale is donated to the BEAM Foundation for research and provide commissions for new musical works. Visit www.Batt-O-Meter.com for more product information, including videos, documentation and support.

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