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I'm trying to use the following RTC module (PCF8563) with Arduino Uno.enter image description here

I am using this library to set/get time and date from PCF8563. However, whenever I shut down the Arduino, the time/date is lost! Even though, as you can see in the picture, the module is equipped with a 3V battery to keep running when Arduino is unplugged.

Any help would be highly appreciated!

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    Did you try to put the jumper in the “BAT” position? – Edgar Bonet Feb 27 '17 at 16:38
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[SOLVED]

The solution is simply to put a jumper between BAT and VCC positions in the module itself. Many thanks to Edgar Bonet

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