Extending Battery Life; Rechargeable Batteries - HP 720 Series User Manual

Extending battery life

Use an optional HP AC adapter or HP Camera Dock when
unloading pictures to your computer, printing, or connecting
to the TV.
Use the optical viewfinder to frame pictures instead of the
Image Display. Leave the Image Display off when the
camera is on.
Turn the camera off during a pause in picture taking.
Use the Auto Flash
Reduction.

Rechargeable batteries

Nickel Metal Hydride (NiMH) batteries can be recharged by
using a battery charger, the HP Camera Dock, or in the
camera when it is connected to the AC adapter. Some things to
keep in mind when using NiMH batteries are:
Always recharge all four NiMH batteries at the same time.
One low-charged battery will reduce the battery life for all
four batteries in the camera.
For NiMH batteries to reach optimal capacity and
performance, they should first be discharged completely
and recharged four separate times.
After long-term storage of NiMH batteries, recharge them
before using them again. Battery cells generally discharge
at about 1 percent per day at room temperature.
70
setting rather than
hp photosmart 720 user's manual
Flash On or Red-eye