and the age and temperature of the battery. This type of battery charger initially charges
at a high rate of current that reduces as battery voltage is restored. When using a
constant voltage battery charger, the charging current should be recorded after five
minutes and the battery charger switched off when the charging current falls to one–third
of the recorded value, or after eight hours whichever occurs first.
NOTE: Multiple battery chargers are designed to charge a number of batteries,
simultaneously. Of the two different types of multiple battery chargers available, only
those that charge batteries in series should be used and it is important that batteries are
of the same or very similar ratings and voltages. Multiple battery chargers that charge
batteries in parallel are not recommended.
NOTE: The use of a fast (boost) battery charger is not recommended as it can cause
damage to a battery. Fast charging will only restore a battery to a state of charge that
will enable it to carry out it’s critical function of cranking the engine. Fast charging will not
restore a battery to a full state of charge and must therefore be followed by a period of
slow charging. Excessively fast charging can cause damage to a battery. For this reason,
charging times must be carefully controlled. Fast battery chargers vary widely in design
so it is very important to strictly adhere to the equipment manufacturer’s instructions. A
charge of 30 amps for up to 30 minutes is the most common fast charging application. If
the battery is very discharged and requires additional restoration, an additional charge of
20 amps for a period up to one and a half hours should be applied. Fast charging for a
period in excess of two hours significantly increases the risk of causing damage to the
battery.
NOTE: When connecting and disconnecting the battery from the vehicle, make sure that
the battery ground cable is disconnected first and connected last and that all electrical
items are switched off. Record the audio unit keycode and preset radio frequencies before
disconnecting the battery.
1. Remove the battery (Focus C-MAX 2003.75,
Focus 2004.75, S-MAX/Galaxy 2006.50, Mondeo
2007.50 only).
2. Disconnect the battery ground cable (All, except
the vehicles mentioned in the previous step).
3.
NOTE: The maximum battery electrolyte
level is approximately 40 mm below the very
top of the battery casing. This corresponds
to a point just below the lower rim of the
battery casing.
Check that the battery electrolyte reaches the
indicated maximum level. Top up with
distilled/de-ionized water, as necessary.
4. Connect the positive red clamp from the battery
charger to the positive battery terminal.
5. Connect the negative black clamp from the
battery charger to the negative battery terminal.
6. Connect the AC power cable to the mains outlet
and switch on.
7. Follow the instructions supplied with the battery
charger to charge the battery.
8. To disconnect the battery charger, reverse the
connection procedure.