Reference Manual

720
Other Compatible Accessories
A
Exchanging Batteries While Shooting
When two batteries are inserted, you can
replace the battery in Chamber A without
turning the camera off. You may find this useful
when using the camera continuously for
extended periods. Be careful not to press the
battery-holder latch or remove the battery
holder while exchanging batteries.
A
Battery Order
If you are using only one battery, it can be inserted in either chamber.
When two batteries are inserted, the battery in Chamber A will be used
first. The camera will switch to the battery in Chamber B when the
battery in Chamber A is exhausted.