The calculator comes with a micro USB cable. To charge your calculator, you can connect it to your computer or to an AC adapter.
Note that this is a standard micro USB cable and that you can use any other micro USB cable. Likewise you can use a standard power adapter, for example that of your mobile phone. However, avoid using a fast-charging AC adapter.
It takes 6 hours to fully charge the calculator. If your calculator doesn’t turn on after charging, see our dedicated support page.