Need help with moving pictures from internal Kodak Z740 to SD card

That sounds like your batteries are worn out because they are rechargeable. The trickle charger doesn't have enough milli-amps to run the camera only to charge the battery.

https://www.google.com/search?q=kodak+easyshare+z740+battery+replacement

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The Z740 works with any SD card, 2GB or smaller. Just make sure you use an SD card, not a higher-capacity SDHC or SDXC card. The brand doesn't really matter, though personally I'd stick with the major brands.

The Z740 works with MMC and SD cards. While SDHC cards will fit into the slot, they are electronically incompatible and will not work with the Z740. You need to use SD cards, 2GB and smaller.

The Z740 uses SD cards. Your 4GB card is actually an SDHC card and, while it will fit into the slot, is electronically incompatible. You need to use SD cards 2GB and smaller.

Double check first if you are using a recommended card for your camera Z740. The recommended card for your camera are those SD/MMC card 1gb to 2gb card.

The Z740 uses SD cards, not SDHC cards. SDHC cards will physically fit into the card slot but are not compatible. It's a hardware incompatibility, not updatable in firmware. You'll have to stay with 2GB and smaller SD cards.

Your camera is only supporting SD/MMC Cards (up to 2 GB)

The card that you currently have might be faulty. Please try another card.
You might also need to switch the camera over to saving pictures directly onto the SD card.1: Menu, Cam settings, Chose AUTO or SD card option Press OK

Note: If the SD card isn't in the camera or is unreadable the camera will automatically go back to saving you taken pictures on the internal memory.

I may be able to help with your Kodak EasyShare Z740 that turns itself off.

Try these steps to fix your camera.

I hope that helps.
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Kodak EasyShare Z740 Turns Off Fix
Kodak EasyShare Z740 Manual Download

I may be able to help with your Kodak EasyShare Z740 that turns itself off.

It may be a 'lens extending' problem, or it might be fixed with a combination of button presses to reset it while turning it on.

Try these steps to fix your camera.

I hope that helps.
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Kodak EasyShare Z740 Turns Off Fix
Kodak EasyShare Z740 Manual Download

In the menu there should be an option to "Copy" phoro. This will copy the pic from internal memory to SD card.