Hp prime lose date&hour when i change battery

[toml_12953]

(01-26-2020 10:50 PM)pippocalo Wrote:  As in subject if i change battery i must re-insert date & time in HP.
Why?
My program and data ara all OK.
Some can give an answer?

Thanks

Filippo

Why are you changing the battery? The one that came with it is rechargeable hundreds, if not thousands of times. I've never needed to replace the battery on my Hardware A machine even though its years old. Just leave the calculator plugged into a USB power source or computer for a few hours and you're good to go.