https://community.sony.dk/t5/z-series/how-to-calibrate-the-battery/m-p/3646021#M122330 <P>Hi&nbsp;<A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/1256899">@Серёга2</A>,<BR /><BR />You can calibrate the battery if you let it go really low, around 2-3%, open up the SIM/SD card slot and press and hold the OFF button until the device powers off. Charge it to full while the device is turned off and turn it on again after 3-4 hours.<BR /><BR />I hope that helps! <IMG class="lia-deferred-image lia-image-emoji" src="https://community.sony.dk/html/images/smilies/011.png" alt="Slightly_smiling_Face" title="Slightly_smiling_Face" /></P> Wed, 07 Aug 2019 12:51:32 GMT Jonas 2019-08-07T12:51:32Z https://community.sony.dk/t5/z-series/how-to-calibrate-the-battery/m-p/3646020#M122329 <P>How to calibrate the battery</P><P><EM>gt</EM></P> Wed, 07 Aug 2019 06:33:12 GMT https://community.sony.dk/t5/z-series/how-to-calibrate-the-battery/m-p/3646020#M122329 Серёга2 2019-08-07T06:33:12Z https://community.sony.dk/t5/z-series/how-to-calibrate-the-battery/m-p/3646021#M122330 <P>Hi&nbsp;<A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/1256899">@Серёга2</A>,<BR /><BR />You can calibrate the battery if you let it go really low, around 2-3%, open up the SIM/SD card slot and press and hold the OFF button until the device powers off. Charge it to full while the device is turned off and turn it on again after 3-4 hours.<BR /><BR />I hope that helps! <IMG class="lia-deferred-image lia-image-emoji" src="https://community.sony.dk/html/images/smilies/011.png" alt="Slightly_smiling_Face" title="Slightly_smiling_Face" /></P> Wed, 07 Aug 2019 12:51:32 GMT https://community.sony.dk/t5/z-series/how-to-calibrate-the-battery/m-p/3646021#M122330 Jonas 2019-08-07T12:51:32Z