Operation; Charging Phases - AEG LP 3.8 Bedienungsanleitung

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CoNNECtiNg
Warning!
Danger of electric shock! always ensure that the
charger is not connected to the 230 V mains socket
when you connect it to a battery.
Ensure that the area around the battery is well venti-
lated.
1. Connect the required pole connector cable (with
ring connectors or terminals) to the plug on the
charger.
Connecting a battery that is permanently
connected to a vehicle
▪
Check the polarity of the battery. Verify which pole
is connected to the vehicle chassis for earthing.
Usually this is the negative pole.
▪
mount the charger with the apertures (9) for perma-
nent installation.
Negatively earthed battery:
1. Connect the red (+) pole connector cable to the
positive pole of the battery.
2. Connect the black (-) pole connector cable to the
vehicle chassis. Warning! the cable should not be
in direct contact with the battery or the fuel line!
positively earthed battery:
1. Connect the black (-) pole connector cable to the
positive pole of the battery.
2. Connect the red (+) pole connector cable to the
vehicle chassis. Warning! the cable should not be
in direct contact with the battery or the fuel line.
Connect a battery that is not connected
to a vehicle
1. Connect the red (+) pole connector cable to the
positive pole of the battery.
2. Connect the black (-) pole connector cable to the
negative pole of the battery.

opEratioN

Prior to charging a battery
▪
if the battery needs to be removed from the vehicle
prior to charging, always remove the ground con-
nection from the battery first. also, ensure that all
other electrical loads in the vehicle are turned off.
▪
Ensure there is sufficient ventilation to allow the
escape of poisonous vapours or gases.
▪
Ensure that the battery poles are clean. if the battery
has a removable ventilation cap, fill every battery
cell with distilled water up to the level recommended
by the manufacturer. Do not overfill the cells.
▪
if the battery has no caps, refer to the manufac-
turer's recommendations regarding charging and
charging speed.
Charging procedure
1. Connect the charger to the battery as described
above.
2. Connect the plug (1) to a power socket.
▪
the charger automatically starts in staNDBY mode.
▪
in staNDBY mode the charger is automatically
resets to the basic settings.
▪
select the appropriate charging mode by pressing
the moDE key (16) until the LED for the correspond-
ing charging mode (9, 10 or 11) lights up (see
"Charging mode and charging time").
▪
By repeatedly pressing the moDE key (16) the
charging mode switches to the next operating mode
and starts respectively.
▪
Charging will start directly in the selected mode.
the CHargE LED (14) will light up.
▪
the CHargE LED (14) is on during the whole
charging procedure and switches off once charging
is completed.
▪
the battery is fully charged when the FULL LED (13)
lights up and the CHargE LED (14) switches off.
▪
as soon as the FULL LED (13) lights up, buffer
charging will start in order to maintain the power
and protect the battery (see CHargiNg pHasEs).
Recovering a used battery
▪
the charger can save most used batteries with volt-
ages up to at least 7.5 ± 0.5 V
▪
Before starting the charging procedure the charger
automatically identifies the battery voltage
▪
thanks to the safety circuit the charger does not
start charging if the voltage is below 7.5 ± 0.5 V
▪
in the voltage area of 7.5 ± 0.5 V to 10.5 ± 0.5 V
the charger initiates an impulse charging procedure
▪
if the voltage increases to more than
10.5 ± 0.5 V, the charger switches to the previously
selected normal mode for faster and safer charging.

CHargiNg pHasEs

the charger performs a fully automated 5-level charge
cycle.
Voltage V
main charging
15.5
Diagnosis 14.4 V
14.1 V
and
13.5 corrective
12.8 V
actions
below 12.8 V
11.5
10,5 V
3.8 a
3.0 a
9.5
Charging
7.5
with a
Charging absorption
high rate
with an 0.8 a
impulse
intermediate
Buffer
rate
charging
100 ma
0
Step 1: Diagnosis and corrective actions
Diagnosis function during which the battery status is
automatically checked and the voltage identified.
Step 2: Main charging
Charging to 80 % of power:
1. the charger provides the battery with a constant
charging capacity of max. 3.8 a until the terminal
voltage reaches a value of 12.8 V.
2. the charger provides the battery with a constant
charging capacity of max. 3.0 a until the terminal
voltage reaches a value of 14.1 V. By reducing the
maximum available charging capacity, the heating
of the battery is minimised. this leads to a reduction
of gas build-up within the battery.
Step 3: Absorption
the charger provides the battery with a constant
charging capacity of max. 0.8 a until the terminal
voltage has reached a value of 14.4 V. the battery is
fully charged. subsequently, the charger automatically
switches to the buffer charging phase.
Step 4: Buffer charging
Buffer charging starts after the battery is completely
14.4 V
charged (LED FULL (13) lights up).
in this mode the connected battery is constantly
charged with approx. 100 ma power. as soon as
the terminal voltage of the battery monitored by the
maintenance
charging
charger falls below 12.8 V, maintenance charging is
0.8 a
automatically activated.
Step 5: Maintenance charging
in this mode the connected battery is constantly
charged with approx. 800 ma power until the terminal
voltage reaches 14.4 V. after reaching this terminal
voltage the charger will automatically switch back to
buffer charging.
this procedure continues cyclically for as long as
possible, depending on the monitored terminal voltage
and is not terminated until the charger is disconnected.
Due to this change of the charge cycle the battery is
kept at the highest possible charging level.
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