HP R818 - Manual (Page 171)

171 Managing Batteries
Battery Performance
The following table shows how the rechargeable
HP Photosmart R07 Lithium Ion battery performs in different
user scenarios:
Type of use Performance
Most economical if you take more than 30 pictures
per month
Good
Most economical if you take fewer than 30
pictures per month
Good
Heavy use of flash, frequent pictures Good
Heavy use of video Good
Heavy use of Live View Good
Overall battery life Good
Low temperature/winter use Fair
Infrequent use (without dock) Fair
Infrequent use (with dock) Good
Spare battery (for long-term storage) Poor
Want to recharge battery Yes