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February 2009 / 12.1 Megapixel / 3.0-inch pivoting LCD / 24x NIKKOR ED glass lens

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Date and time is lost when the battery is removed.

Is there a battery for date and time back-up? This did not happen when the camera was new. Where is it?

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FWIW, the only battery the Owner's Guide mentions is the main power battery. I just upload the manual if you would like to take a look at it.

Nikon Coolpix P90

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Hi @serene1 ,

Given that the date and time settings are only held for 10 hours if the main battery is removed, it is more than likely that a capacitor is being used to maintain the settings rather than a rechargeable battery.

Without a schematic diagram or a service manual it will be difficult to know where it is.

I have looked at teardown videos of the camera on YouTube but cannot see anything obvious. There's certainly nothing that looks like a battery, directly mounted on the motherboard like they have in other cameras but it may be somewhere else in the camera.

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William Mills 将永远感激不已
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