November 2004 / Masterlink MICC / EN
19
Charge Efficiency Factor C.E.F (H04)
The third level is the C.E.F (Charge Efficiency
Factor). Every combination of battery and
charger has an total efficiency. This means that
there must be more Ah charged into the battery
than are used. A standard wet type lead acid
battery
has
an
efficiency
of
approx.
80 %, a gel type battery has an efficiency of
approx. 90 %. The efficiency of a battery is
improved after it has been used for 5-10 cycles.
For the rest of the lifetime of the battery the
efficiency will slowly decline depending on its
age and the number of discharge cycles. If an
efficiency of 70 % is reached, it will basically
mean that the battery is at the end of its lifetime
and needs to be replaced. The changing of the
efficiency means that it is necessary to calculate
the efficiency every charge and discharge cycle.
The C.E.F. is not only for the reading of the
charge and discharge information of the
MICC, but also for the calculation of the time
remaining function.
Number of cycles (H05)
The fourth level gives information about the
number of 35 % (low battery set point) cycles
used from the battery after the Masterlink MICC
was set up or after the Masterlink MICC was
reset to factory settings.
The number of cycles a battery can handle
depends strongly on the type of battery and its
quality. One cycle is reached if the battery is
discharged from 100 % state of charge down to
0 % followed by a charge up to 100 %. One
cycle is also reached if a battery is discharged
twice to 50 % and charged back to 100 % or
discharged four times 25 % and charged to
100 % etc.
A normal cranking battery can perform approx.
50-80 cycles before the end of its cycle life is
reached. A semi traction battery can perform
about 200-250 cycles and full traction batteries
can handle 1000-1500 cycles before the end of
their cycle lifetime is reached. The number of
cycles the battery is used together with the
C.E.F. of the battery gives a reasonable
indication about how long the battery can be
used before it needs to be replaced.
Every time the battery is discharged below
35 % of its rated capacity and charged back to
at least 85 % of its capacity, one cycle is
counted.
Software version (H06)
The fifth level of this menu displays the software
version installed in your MICC. This software
version can be used for future references.
Error status (H07)
The sixth level shows the error status (see the
low battery alarm settings for more information).
At this level it is possible to return to the user
menu by means of the
Set-up
button
. Also if
none of the buttons are used for 15 sec the
MICC returns to the users menu.
Select
C.E.F.
90 %
Select
SOFTWARE VER.
1.02
Select
ERROR STATUS
NONE
Select
NUMBER CYCLES
10
Содержание 70403105
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