Question about JVC Everio GZ-MG30 Camcorder

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My JVC Everio GZ-MG30 will not hold a charge... I can leave it charging for hours and it doesn't charge. Works fine otherwise when plugged in but no battery! HELP!

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  • tony342 Nov 12, 2009

    Thanks for the response.

    I actually purchased a new battery and fully charged it (overnight) to no avail -- unplugged after charging and the camcorder would not even power up, as if no battery was attached at all. That's the troubling part, it's not that it's saying low battery power or flashing battery icon onscreen, whatever... it's not powering up at all. But it works like gangbusters when plugged in. Any additional thoughts? Thanks!



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Your battery has developed a memory. This is common with electroncs, laptops, cell phones, and yes cameras! You will need to replace your battery. To get the most from your new battery, fully charge before using the camera. Do not re-charge until the battery is all but dead, then fully charge before using. Always do it this way and you will get optimum life expectancy from your devices. Unfortunately, we tend to re-charge prematurely and even use devices while charging...which is ok, but when we do not fully charge, or we plug in before the dying end, the battery begins to develop a memory and thinks it doesn't need as much charge until eventually, the device will not work unless plugged in. Good Luck. I hope this is helpful.

Posted on Nov 12, 2009

  • Hal Hallman Nov 13, 2009

    Ok, your charging cord either has a transformer built in, reducing the voltage to the proper amount for your device, or there is a transformer in the device itself, inside the case, near the point that the charging plug goes in. What we know. We know that this transformer is functioning...evidenced by the fact that your device will work when the cord is attached. What we don't know is whether or not the transformer is getting power to your battery, or if the battery is getting power out, or a combination of the 2. First thing to check are the contacts that the battery touches when placed in the device. You can lightly clean these with a Q Tip and some denatured alcohol. Also it is important that these contacts are not bent or that they are making firm contact with the battery. If you have access to a voltage tester, you can determine if power is getting to the contacts that charge the battery when it is in place. If none of these suggestions fix the problem, then you have a power break near the transformer...if it is not on the cord...if it is on the cord, then you have a power break either between the point that the cord plugs in and the "Charging Contacts" that touch your battery, or the "Power Up" contacts and the point that those wires integrate back into the wiring that operates your device. If you are not pretty good at micro type wiring, it may be a good Idea to have a qualified tech, test these wires and make your repair. It should be easy for them to trace and a simple fix. Good Luck!



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