Question about Casio Cassiopeia E-105 Pocket PC

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External batteries I don't know if my battery is old, but using the backlight on full and playing movies from the CF card, the battery in my E-105 doesn't even make it a whole hour. Anybody know how long a new battery should last under these conditions? So here's what I do. I soldered a 4xAA battery holder to a few feet of wire with a coaxial DC plug on the end that fits the Cassiopeia. I fill it with NiMH AA cells (1.8Ah), since I have a lot and they are easy to recharge. I ran it this way for 1.5 hours on a plane and they still weren't depleted. I haven't had a chance to run it all the way down. Since the unit considers itself to be on AC power, the battery saving features don't activate and you can watch the video uninterrupted. 4 AA cells in the holder fits pretty easily in a coat pocket, as do an extra set of cells. This way I can use the unit as long as I need to on airplanes, airports and subways. Plus, when the AA's are drained, I still have a full internal battery to use. I was going to buy a second Casio battery, but they are at least $35 and require you to remove the unit from it's case, open the cover and risk running down the backup battery. This setup costs <$10 (it was free for me since I had all the parts sitting around) and simply plugs in. It will also charge the internal battery off the AA cells. I was also considering setting up a 6V 5A-h gell cell with a 5V regulator (should be good for 4-5x the run-time of the internal battery), but the gel cell requires a specific charger and is relatively heavy. The NiMH batteries give about 5.4V. Alkalines give 6. I'm not sure if this is recommeded, since the Casio power supply is rated at 5V. I did try it and it everything worked fine. I haven't actually tested the output voltage of the Casio adapter, but it is probably >5V at low loads and only drops as low as 5V when you are running and charging at the same time.

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Sounds to me like you have a winning plan of attack. I did the same thing a couple years back, bought one of those 4XAA battery holders with a little slide switch and put a jack on the end of the wire...worked fine. Then I bought a 6V 1500 mAh rechargeable battery from Radio Shack that was made for r/c cars and such. It worked great too. Never had problem one with either setup.

Posted on Sep 06, 2005

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Posted on Jan 02, 2017

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Canon reports that this error code may appear on your digital camera’s LCD (liquid-crystal display) when there is an error reading from or writing to the inserted CF (CompactFlash) card. This error code occurs most often after a user has tried to eject a CF card before the camera has finished writing data to the card.Solution:
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