HP PhotoSmart 945 - Manual (Page 125)

Appendix A: Batteries and Camera Accessories 125
z
Always recharge all four NiMH batteries at the same time.
One low-charged battery will reduce the battery life for the
other batteries in the camera.
z
NiMH batteries discharge when not in use, whether they are
installed in a camera or not. If they have not been used for
more than two weeks, recharge them before using them
again. Even if you are not using your batteries, it is a good
idea to charge them every six months to a year to prolong
their useful life.
Sleep Time-out for Power
Conservation
To conserve battery power, the active display turns off
automatically if there is no button activity for 60 seconds.
When the camera is in this “sleep” state, pressing any button
will wake the camera up again. If no buttons are pressed
during the sleep state, the camera will turn off after the time
that is set in the Auto Power Off menu (page 86), unless it is
connected to a computer, printer, or TV.