Topic | Batteries getting hot and meter doesn't work

Home Forums Mooshimeter Support Batteries getting hot and meter doesn't work

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    • #7824 Reply

      My mooshimeter sat unused for a couple months and I couldn’t get it to turn on. The LED light looked dim, so I installed new batteries. The LED was bright and the meter worked for a few seconds, but then the batteries got hot and the meter wouldn’t do anything. I removed the batteries and the PCB looks like it got a little hot. Is this meter defective? Help please.

    • #7912 Reply

      Hi Alienbush,

      This is a problem with the batteries – when there is too much force on the ends of the AA batteries they can be damaged internally and heat up. This can happen if the battery contacts in the meter are bent so that tightening too hard on the screws pushes on them and causes excessive pressure, or if the meter is dropped right on the battery end on a hard surface.

      If you change the batteries, the meter should be fine. If it happens again, I’d examine the battery contacts to make sure they are not irregularly bent.

      Regarding the original batteries dying in the first place: Were you a crowdfunding backer? The first batch of meters to leave the factory had a firmware bug that reduced battery life substantially. If you run a firmware update, your new batteries should last over a year.


    • #8080 Reply

      Thanks. You are correct. I didn’t know different brand AA batteries could be so different in size. The Rayovac brand batteries are too big around. I went back to the original Duracell brand and problem solved. Have a great day.

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