Completely turning off HP Prime

[grizzly]

Hi everyone,

Does anyone know how do I turn off HP Prime G2? I mean, turning it off completely, not in standby mode with Shift+On (Shift+Off).

The issue is, that I use it extensively for a week and then have a break for 1-2 months. During that time the calculator discharges itself and I have to charge it. This seems to damage the battery in the long term considerably, because it's often sitting in my shelf at 0% charge and then I charge it to 100% when I notice.

I checked the manuals, official pages, but to no avail.

Is there a way to turn the calculator off completely, similar to turning off your phone?

Thanks.