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DATA: YOUR BATTERY HISTORY
DATA: The DATA mode is used to recall key
historical information about the battery.
To access the DATA displays:
Before you begin, select the battery whose data you wish to see.
1) Hold down the SET button until
SELSEL
SELSEL
SEL appears in the numeric display.
2) Press the SEL button six times until the red light above the word DATA appears.
3) Charging Efficiency Factor is the first number displayed.
4) Press SEL again. The number of CEF Recalculations is displayed.
5) Press SEL again. The deepest depth of discharge is displayed.
6) Press SEL again. The average depth of discharge is displayed.
7) Press SEL again. The next light on the Light Bar, the one over the word LOCK
will come on. The LOCK function is described on the next page.
What the Historical Information Means:
CEF (Displayed as
E99E99
E99E99
E99): The Charging Efficiency Factor (CEF) is the rate at which amp
hours are counted back up during charging. The amp-hour CEF, not kilowatt-hour CEF,
is displayed. A display of E99 indicates a 99% CEF based on amp hours. The Default setting
is 95%. NOTE: If the CEF display has a "u" in front of it, this means the CEF has been
selected by the user. See Advanced Function F06 on page 18 for details.
#CEF Recalculations (Displayed as
+I999+I999
+I999+I999
+I999): This is the number of times that the battery
has been discharged more than 10% and then completely recharged (meaning charged until
the Charged Parameters have been met). Consider this to be the number of charge/discharge
cycles the meter has recorded since its last RESET to factory defaults. A discharge of less
than 10% of battery capacity is not counted as a "cycle."
Deepest Discharge (Displayed as
-i999-i999
-i999-i999
-i999): Shows the deepest discharge in amp hours
recorded by the meter since its last RESET to factory defaults. Think of this as the "worst
thing you've ever done to your battery."
Average Discharge (Displayed as
i999i999
i999i999
i999): The running average of all discharges since
RESET to factory defaults. For best battery life, you should not routinely discharge more
than 50–65% of your battery's capacity. If you do, you shorten its life. An average discharge
of 500 amp hours on a 900 Ah battery is demanding but not unreasonable. An average
discharge of 180 amp hours from a 200 Ah battery is almost a sure way to make a battery
salesman happy!