6
that may occur due to difference in potential
between charger terminals and battery termi-
nals. Note! Make sure the charger terminals are
not short-circuited and ensure that the polarity
is correct.
• If the charger is equipped with battery clips;
fi rst connect the positive clip (RED) to the
positive battery pole, then connect the other
clip (BLACK) to the battery’s negative pole.
• To charge batteries in vehicles; fi rst connect
the positive clip (RED) to the positive battery
pole (The one not connected to the vehicles
chassis), then connect the other clip (BLACK) to
the vehicle’s chassis - a good distance from the
battery and fuel system (fuel hoses, fuel pump
etc.).
• The charge cycle starts when the charger is
connected to the mains.
• If the charger is disconnected from the mains
voltage during a charge cycle the charger will
start a new charge cycle when it is reconnected
to the mains.
• When charging is complete, disconnect the
charger from the mains before removing
battery connections.
If the charger is equipped with battery clips:
fi rst disconnect the clip from the battery’s
positive pole then the other from the negative
battery pole/vehicle chassis, in this order.
• The recommended minimum battery capacity
for which the specifi c charger can be used
vary from battery to battery. Some do not have
a capacity restriction at the specifi ed boost
voltage level while others have restrictions.
Please follow the datasheet and recommen-
dations from the battery manufacturer. In
our tables we use typical C/5 as a maximum
charge current for Lead Acid cells. C/5 means
that charge current for a 10Ah battery should
be max 2A. Thus the typical minimum capacity
recommendation is then 10Ah for a 2A charger.
For max battery capacity we have used 50
times charge current for chargers with timer
(and/or uC) and 50 times current detection
levels for chargers using only this termination
method. For a 2A charger with 0.25A current
detection level the max capacity recommended
will be 50 x 0.25A = 12.5Ah. Again this is
just typical recommendations. Please read
recommendations and datasheets from battery
manufacturer.
