Church ST-9000 how long does the 9V battery last?
I've got a question on the Church ST-9000 preamp that has the 9V battery inside it. Anybody know how long the battery lasts? Is there a way to test it out to see if it has enough power? I change mine often but I've been wondering if I can get say 20 shows before a new one has to go in. Thanks in advance!
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