CTEK MXT 4.0 - Manual (Page 3)

EN
EN • 5
STEP 1 DESULPHATION
Detects sulphated batteries. Pulsing current and voltage, removes sulphate from the lead
plates of the battery restoring the battery capacity.
STEP 2 SOFT START
Tests if the battery can accept charge. This step prevents that charging proceeds with a
defect battery.
STEP 3 BULK
Charging with maximum current until approximately 80% battery capacity.
STEP 4 ABSORPTION
Charging with declining current to maximize up to 100% battery capacity.
STEP 5 ANALYSE
Tests if the battery can hold charge. Batteries that can not hold charge may need to be replaced.
STEP 6 RECOND
Choose the Recond program to add the Recond step to the charging process. During the Recond step
voltage increases to create controlled gasing in the battery. Gasing mixes the battery acid and gives
back energy to the battery.
STEP 7 FLOAT
Maintaining the battery voltage at maximum level by providing a constant voltage charge.
STEP 8 PULSE
Maintaining the battery at 95–100% capacity. The charger monitors the battery voltage and gives a
pulse when necessary to keep the battery fully charged.
1
VOLTAGE
(V
)
CU
RRENT
(A
)
ANALYSE RECOND PULSE DESULPHATION SOFT START BULK ABSORPTION
28.8V
Increasing voltage
to 29.4V @ 25°C
4A
4A until 25.2V Increasing voltage
to 28.8V @ 25°C
4A
1 7
Limit: Max 30h Max 8h 3 minutes
30 min or 4h
depending on
battery voltage
10 days
Charge cycle restarts
if voltage drops
Charge cycle restarts
if voltage drops Max 4h
29.4V
28.8V 4A until 25.2V
4A until 25.2V
Increasing voltage
to 28.8V @ 25°C
4A
28.8V @ 25°C
Declining current
29.4V @ 25°C
Declining current
28.8V @ 25°C
Declining current
Checks if voltage
drops to 24V
Checks if voltage
drops to 24V
Checks if voltage
drops to 24V
27.2V
4A
27.2V
4A
27.2V
4A
25.8V‒28.8V
4–1.4A
25.8V‒29.4V
4–1.4A
25.8V‒28.8V
4–1.4A
Max 4h
2 3 4 5
FLOAT
6 8
RECOND
AGM
NORMAL
Max 31.4V
1.0A
CHARGING PROGRAM
20015561D MXT 4.0, Manual EU, Print file 003.indd 5 2011-10-11 12:42:47