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CTEK PRO25S User Manual

CTEK PRO25S
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EN • 9
LITHIUM
Wake up
1 2 3 4 5 6 7 8
LITHIUM
13.0V Max 25A Max 25A until 13.8V
Declining current
13.8V
Checks if voltage
drops to 12.0V
Max 3A 14.4V
13.3V
Max 25A
13.0V–13.8V
25A–3.0A
Time limit: Max 10 minutes Max 30h Max 4h 3 minutes
If start charge voltage less than 13.9V
then max 2h
10days
Charge cycle
restarts if voltage
drops
Max 1h pulse
Auto pulse
10 days
STEP 1 ACCEPT
Tests if the battery can accept charge. This step prevents that charging proceeds with a
defect battery.
STEP 2 BULK
Charging with maximum current until approximately 90% battery capacity.
STEP 3 ABSORPTION
Charging with declining current to maximize up to 95% battery capacity.
STEP 4 ANALYSE
Tests if the battery can hold charge. Batteries that can not hold charge may need to be
replaced.
STEP 5 COMPLETION
Final charge with reduced current.
STEP 6 MAXIMIZATION
Final charge with maximum voltage up to 100% battery capacity.
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.
BATTERY SIZE (Ah)
TIME TO 80% CHARGED
40Ah
1.5h
100Ah
3h
200Ah
6h
300Ah
16h
READY TO USE
The table shows the estimated time to charge a battery from empty to 80%

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CTEK PRO25S Specifications

General IconGeneral
Output Voltage12V
Charging Current25A
Operating Temperature-20°C to +50°C
Protection ClassIP44
Battery TypesAGM, EFB, GEL
Charging Voltage14.4V/14.7V/15.8V
Dimensions235 x 130 x 65 mm
Protection FeaturesReverse polarity protection
Charging ModesNormal, Recond
Battery Capacity40-500Ah

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