Zoom H4n Operation Manual page 19

• Battery's approximate lifetime
in general use
Alkaline battery
in stamina mode
use
* Approximate lifetime when it is used for continuous recording on
WAV 44.1 kHz/16bit format.
• Remaining lifetime of the battery
When "Low Battery!" indication appears, immediately
switch off unit and exchange batteries, or shift power
source to AC adapter.
When remaining battery
life is getting short, "Low
Battery" indication will
be shown every two
seconds and the power
will switch off shortly after.
about 6 hours
about 11 hours
FULL
EMPTY
NOTE:
Usable batteries
You can use conventional alkaline and nickel metal hydride batteries.
Power supply from USB
Connect the USB cable to the H4n while it's already connected to
the computer with the power switch off, and power is automatically
turned on via USB bus power supply. This function is only available
when the H4n is used as an SD card reader or an audio interface.
HINT:
To measure the lifetime of the battery
The remaining lifetime of the battery is measured more precisely
by using the battery type setting on the H4n.
Saving period for the setting <DATE/TIME>
Whenever power supply is off by dead battery, the H4n can save
the date/time setting for three minutes. When the saving time is
over, the setting will be returned to the default value.
Screen indicator for power
Using batteries Using AC adapter
☞
Ref. P.033
<USB BUS POWER>
☞
Ref. P.128
<BATTERY TYPE>
018