CTEK ZAFIR 90 - Manual (Page 5)

CHARGING PHASES
ZAFIR 90 operates in a four step fully automatic cycle. It begins charging with an almost
constant current (0.5A or 3.3A) until maximum voltage (14.4V or 14.7V) is reached. The charger
changes mode at this point. It locks the voltage at maximum level and allows the current to
drop. The ZAFIR 90 switches automatically to pulse maintenance charging when the current
drops to 0.4A. The charging cycle restarts if the battery voltage drops to 12.9V.
Desulphation - Desulphation with pulsing for sulphated batteries.
Bulk - Charging where 80% of the energy is returned. The charger delivers an almost constant
current until the battery voltage reaches maximum level.
Absorption - Charging up to almost 100%. The charge current falls and the voltage is kept
constant at the maximum level.
Pulse - Maintenance phase, where the charger delivers a pulse if the battery voltage drops.
Charging varies between 95% and 100%. The battery receives a pulse when the voltage
reduces. Keep the battery in good condition when not in use. The charger can be connected
for months.
TEMPERATURE PROTECTION
ZAFIR 90 is protected from being overheated. The power will be reduced if the ambient
temperature is raised.
MAINTENANCE
The charger is maintenance free. Note that disassembly of the charger is not permitted and
will void the warranty. If the power cord is damaged, the charger must be left to the reseller for
maintenance. The case can be cleaned with a soft damp cloth and mild cleanser. The charger
should be disconnected from the power while cleaning.
EQUIPMENT
ZAFIR 90 is delivered with a set of battery leads with battery pole clamps and a set of battery
leads with eyelet terminals.