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Matchbox 7 is EATING BATTERIES!

Posted: 31 Jul 2020 5:17 pm
by Jim Hollingsworth
I'm not sure why, but my Matchbox 7A is eating batteries even if it gets only occasional use. The input is unplugged when not in use. Example: I put new 9v batteries in in late May. I didn't play for half of July. Today the unit is fuzzing.... batteries were down to less than 1 volt.

Does anyone have a suggestion?

jim

Posted: 31 Jul 2020 11:10 pm
by John De Maille
I have a SteelDriver III and I unplug both wires when not in use. The batteries last a long time for me.

Posted: 1 Aug 2020 5:50 am
by Larry Dering
Jim, it's possible that the contacts are not going open and the pedal is still on even unplugged. I don't like the unplug method and will eventually put a on/off switch on the pedal. Open the pedal and watch the contacts as you plug and unplug it on the output jack.

Re: Matchbox 7 is EATING BATTERIES!

Posted: 1 Aug 2020 7:01 am
by Donny Hinson
Jim Hollingsworth wrote:
Does anyone have a suggestion?
Learn to do without it, as thousands of players have. :wink:

30-40 years ago, most every player used one. Now, with powered volume pedals and the renewed interest in the advantages of pot-pedals, I seldom see players using a Matchbox.

Posted: 1 Aug 2020 7:04 am
by Erv Niehaus
The model 7A should have a on/off switch on it.
That disconnects the battery so there should be no drain on the battery.
Erv

Posted: 1 Aug 2020 7:09 am
by Eric Einarsson
It is also possible that one or more of its electrolytic capacitors has become leaky.

I have an old guitar tuner that began consuming batteries while sitting unused in its case. I measured the current draw in its 'off' state, and it did have some small current draw. I replaced its four electrolytic capacitors and now it doesn't draw any current while it's off.

Good luck fixing the problem.

Eric

Posted: 1 Aug 2020 9:02 am
by Tom Wolverton
I’d get a Freeloader instead. It is very efficient on power. And I think you can buy them from Brad now with a power off switch on them.

Posted: 2 Aug 2020 5:21 am
by Erv Niehaus
I use a Matchbox if for no other reason than I have a volume and tone control right at my finger tips. :D
Erv

Posted: 2 Aug 2020 8:07 am
by Jim Palenscar
Ask Kevin about it but w my Steeldriver I need to unplug the output- not the input.