21 Using Batteries Checking Battery Charge
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TimeToEmpty tells you approximately how long you can continue to use the monitor with this
battery. Note that this time fluctuates depending on the system load (the display brightness and how
many measurements you carry out), the age of the battery, and the remaining capacity of the battery.
TimeToFull is shown in place of TimeToEmpty if the monitor is connected to mains power via
a host monitor or the M8023A external power supply, and tells you how much time is left until the
battery is charged to 90%. You can use the M8043A Smart Battery Charger to charge the batteries
externally.
Battery status/malfunction symbols: If a problem is detected with the battery, an INOP may be
issued, and the following symbols are displayed in the Battery Status window, where they may
be accompanied by a battery status message providing more details. Messages appear in the line where
TimeToFull/TimetoEmpty is shown. Symbols indicating critical situations are colored red.
Printing Battery Reports
To pr i n t t h e i n formation in t h e Battery Status window on a connected printer,
1 Select the battery status information on the Screen to open the Battery Status window
2 Select the Print Status pop-up key.
Checking Battery Charge
♦ To c h e c k t h e c h a r g e s ta tu s o f a b a t t e r y i n a m o nitor, see the battery power gauge on the Screen or
select Main Setup -> Battery to enter the Battery Status window.
♦ To c h e c k t h e c h a r g e s ta tu s o f a b a t t e r y t h a t i s n o t connected to a monitor or battery charger, press
the black dot marked “PUSH” on the labeled side of the battery. The remaining charge is indicated
by four LEDs on the electronic fuel gauge directly above the dot. Each LED represents 25% of
charge. If all LEDs are lit, the battery is fully charged, if only one LED is lit, 25% or less charge is
left.
Battery status symbols Battery malfunction symbols
battery is empty
(red) incompatible battery
battery not charging as the temperature is
above or below the specified range
(red) battery malfunction
battery requires maintenance (red) battery has no power left
charging stopped to protect the battery (red) battery temperature too
high
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