Battery Charging

[Thomas_Sch]

Hi,
the manual (Third Edition: December 2017) says:

Quote:Before starting
Charge the battery fully before using the calculator for the fi rst time. To charge the battery, do one of the following:
● Connect the calculator to a computer by using the USB cable that came in the package with your HP Prime calculator. (The computer must be on for charging to occur.)
● Connect the calculator to a wall outlet using the HP-provided wall adapter.
When the calculator is on, a battery symbol appears in the title bar of the screen. Its appearance indicates the charge level of the battery. A discharged battery takes approximately 4 hours to fully charge.