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2.
Performance characteristics and operating functions
The portable battery charger LEAB CPC has been developed both for mobile use and stationary
installation in vehicles for the charging of all types of lead batteries.
Thanks to their compact design, high capacity and very good interference suppression, LEAB battery
chargers have been used for years wherever optimum mobile battery charging is essential.
Custom charging programs are available for special applications, and also provide a suitable solution for
special applications such as the charging of traction or lithium batteries.
2.1
Charging procedure
Battery charging takes place completely
automatically and controlled by micro-
processor with a three-stage IU
characteristic for optimum and gentle battery
treatment. The charging parameters can be
adapted to the type and capacity of the
batteries to be charged during installation
and before connection to the battery by
selected one of the 15 characteristic curves
stored in the device.
Charging with constant current (I-phase, LED lights up orange)
Depending on the battery's state of charge, maximum charging current is used in order to store as much
energy as possible in the battery as quickly as possible. If an exhaustively discharged battery is
connected for charging, the battery charger starts charging at reduced current to prevent damage to the
battery. After the set main charging voltage has been reached (14.2 (28.4) to 14.4 (28.8) V depending on
the battery type), the battery charger switches to the next charging phase.
Charging with constant voltage (U
The actual full charging of the battery takes place in this phase. The voltage is kept contact at a value of
14.4 (28.8) V (setting gel/AGM) or 14.2 (28.4) V (setting wet cell). As the battery charge increases the
current drops continually and approaches a lower limit which depends on the type and size of the
battery. As soon as the value drops below this limit or a set minimum charging time has been exceeded,
the battery charger switches to phase 3.
Equalisation charging (U
-phase, LED lights up orange): only with the program for traction batteries
2
Following the main charging phase, the electrolyte is stabilised, any sulphating of the plates is degraded.
Depending on the battery type set, the voltage increases to up to 15.6 (31.2) V at reduced charging
current. As soon as this phase has been completed the battery charger switches to phase 4.
Maintenance charging with reduced voltage (U
The charging voltage is reduced to 13.6 (27.2) V (setting wet cell) or 13.8 (27.6) V (setting gel/AGM) to
keep the battery fully charged over an unlimited time. Physical self-discharge is compensated and the
battery is kept fully charged until it is disconnected. During the maintenance phase LEAB CPC battery
chargers can operate connected consumers up to the full capacity of the battery charger without any
undesired return to main charging.
The values specified are for 12 V charging setting (values for 24 V in brackets).
All manuals and user guides at all-guides.com
LEAB Automotive -CPC
oU
charging
1
2
-phase, LED lights up orange)
1
-phase, LED lights up green)
3
LEAB Automotive GmbH
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