The EFOY Pro fuel cell does not start immedi-
ately if the switch-on voltage only drops below
the set threshold level temporarily. The device
only starts automatically if the switch-on volt-
age is still below this threshold level after the
switch-on delay of 60 seconds. For example,
with the factory default of 12.3 V for lead-acid
batteries, the switch-on voltage must drop be-
low 12.3 V for at least 60 seconds in order for
the EFOY Pro fuel cell to start.
If loads with a high rate of power consumption
are operated temporarily, this value must be
set in accordance with the operating times of
these loads.
The EFOY Pro fuel cell switches on at the set
voltage and charges the battery.
Setting too high a value for the switch-on volt-
age results in frequent starting of the EFOY Pro
fuel cell. Setting too low a value for the switch-
on voltage results in damage to the battery.
The default value for lead batteries is 12.3 V,
which corresponds to approx. 50% of the bat-
tery charge condition.
If the battery voltage reaches the set level, the
EFOY Pro fuel cell switches off, provided that
the value set for the "Switch-off current" pa-
rameter has also been reached.
Please note your battery's end-of-charging
voltage. Note the charging recommendations
provided by the battery manufacturer.
The EFOY Pro fuel cell switches off if the cur-
rent drops below the set switch-off current.
If you want the battery voltage to serve as the
only switch-off parameter, set the maximum
value, as the current is always below this value
in EFOY Pro fuel cells.
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