Manual Ultimate speed ULG 3.8 B1 - IAN 274400 (page 20 of 74) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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ULG 3.8 B1

Automatic battery recognition

As soon as the charger is connected to the mains

power supply, the LED display

on the device

lights up.

The charger recognises the battery on the basis of

the following criteria:

If the voltage of the battery is less than 3.8 V or

greater than 15 V, the battery is not suitable for

charging or defective. In this case, the LED Dis-

plays

and

ﬂash. The

charger remains in "Standby mode” and cannot be

switched to another charging mode by means of

the MODE selection button .

Pulse charging mode

The mode is suitable for the charging/regeneration

of empty, used and overcharged 12V lead-acid

batteries.

When the charger is connected to a battery and

the charging process starts it automatically rec-

ognises the battery voltage. It will switch to pulse

charging mode if the voltage is in the range of

7.5V ± 0.5 to 10.5V ± 0.5V.

This pulse charging process is continued until the

battery voltage has increased to 10.5V ± 0.5V.

As soon as this state is reached, the charger switch-

es over to the previously selected normal charging

mode.

Now the battery can be charged quickly and safe-

ly. Most empty, used or overcharged batteries can

be regenerated and reused using this procedure.

NOTE

► During the pulse charging process, the LED

display

ﬂashes.

Trickle charging

The charge is equipped with an automatic trickle

charging function. Depending on the voltage of the

battery, the charger reacts by supplying diﬀerent

charging current. The battery can remain connect-

ed to the charger for a long period of time.

Protective function of the appliance

In the case of an incident such as short circuiting, a

critical voltage drop during the charging process,

an open circuit or reversed connection of the output

terminals, the charger deactivates the electronic

system and immediately switches back to its basic

state to avoid damage.

If you do not activate any settings, the system will

remain in Standby mode. If the terminals are incor-

rectly connected (reverse polarity), the LED display

"ERROR"

also lights up.

If the appliance becomes too hot during charging,

the power output is automatically reduced. This

also protects the appliance from damage.

Maintenance and cleaning

WARNING! Always remove the

power plug from the wall socket

before carrying out any work on

the battery charger.

The appliance is maintenance-free.

♦ Under no circumstances should solvents or other

aggressive cleaning agents be used.

♦ Clean the plastic surfaces of the appliance with

a soft, dry cloth.

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Ultimate speed ULG 3.8 B1 - IAN 274400 Manual

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