Table of Contents
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MANUAL
CONGRATULATIONS
on the purchase of your new CTEK charger providing professional battery care. This charger is
included in a series of professional chargers from CTEK SWEDEN AB and represents the latest
technology in battery charging. With the CTEK D250SA and SMARTPASS 120 you can be sure of
getting maximum performance from your dual battery system.
SAFETY
CALIFORNIA PROPOSITION 65
WARNING: This product contains chemical known to the state
of California to cause cancer or reproductive toxicity.
• The D250SA and SMARTPASS 120 have been developed for 12V lead-acid batteries. Do not use
the unit for any other type of battery.
• Wear protective goggles when connecting and disconnecting batteries.
• Battery acid is corrosive. Rinse with plenty of water immediately if you get acid on your skin or in
your eyes. Get medical assistance.
• Never use a charger with damaged electric cables. Check that the cables have not been dama-
ged by hot surfaces, sharp edges or in any other way.
• Explosive gases are generated while lead-acid batteries are being charged. Avoid any sparking
near the battery. Use in a well-ventilated location.
• Never place the charger above the battery, and avoid covering the charger during charging.
• Disconnect the battery terminal posts before installing.
• The D250SA and SMARTPASS 120 are not spark-free.
• The installation must include a fuse in accordance with the recommendations in the table
WARNING!
The D250SA and
SMARTPASS 120 are not
protected against reversed
polarity.
Remember that all installations in boats must comply with ISO 10133!
1. The cabling from the batteries must have fuses near the batteries.
2. The batteries must be securely fastened in a ventilated space.
3. The cabling must be run through pipe ducting, separately from 230V/110V wiring (mains power),
or secured by clips at every 30 cm/1 ft.
4. Cabling in the engine compartment must be temperature rated at 700C/ 1580F.
D250SA
Input Solar panel
+IN
Input Alternator
+IN
SMARTPASS 120
Input Alternator
+IN
+IN
SMARTPASS 120
Connector plate
Earth Connection
Temperature sensor 2 m/6 ft.
Smart alternator cable (red) 0.2 m/0.6 ft.
Output Service battery
+OUT
Output Service battery
+OUT
Negative cable connection (M8) 0.3 m/1 ft.
+OUT
Temperature sensor 2 m/6 ft.
+OUT
Output Consumers
+OUT
EN • 3
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Related Manuals for CTEK D250SA
Summary of Contents for CTEK D250SA
- Page 1 CTEK SWEDEN AB and represents the latest Input Solar panel Earth Connection technology in battery charging. With the CTEK D250SA and SMARTPASS 120 you can be sure of getting maximum performance from your dual battery system. SAFETY Temperature sensor 2 m/6 ft.
- Page 2 SMARTPASS 120 • The D250SA is a DC to DC battery charger for a dual battery system with a starter battery and a • SMARTPASS 120 is a solution for supplying current to charge and manage consumers in a dual service battery.
- Page 3 +OUT Current from alternator to service battery and consumers. *If the D250SA and SMARTPASS 120 are installed in different locations and the accompanying connector plate is Current from service battery to consumers. not used, please follow the recommendations in the table.
- Page 4 6. Connect the battery negative terminal post. Figure 4 WARNING! WARNING! The D250SA and SMARTPASS 120 The D250SA and SMARTPASS 120 are not protected against reversed are not spark-free. polarity. Disconnect the battery Ensure good ventilation.
- Page 5 Ignition signal, +15 clamp (DIN 72552) (DIN 72552) SYMBOLS Chassis/Earth AGM Cable (black) Chassis/Earth SMARTPASS 120 • Starter battery Input Alternator • Input Alternator D250SA via connector plate or cable Output Service battery Output Service battery D250SA +OUT SYMBOLS Output Consumers Non-critical consumers Fuse See ”CABLE AND FUSE RECOMMENDATIONS”...
- Page 6 TIP 2 Solar panel capable of charging a 40–300Ah Do not connect two solar panels in series. Max. A dual battery system where the D250SA If the alternator has external voltage detection service battery. The D250SA uses MPPT input voltage 23V.
- Page 7 It is advantageous to use this installation when: PREREQUISITES • The consumers are supplied directly from the A dual battery system where the D250SA char- • The alternator is not able to deliver the desired A dual battery system where the alternator at the same time as the service bat- ges a 40–300Ah service battery from a solar...
- Page 8 By connecting the consumers to the Output alternator. A dual battery system where there is a A dual battery system where a D250SA Consumers on the SMARTPASS 120, the service 230/110V charger and a D250SA that, together with a SMARTPASS 120 charges a •...
- Page 9 D250SA CHARGING PROGRAM STEP 1 DESULPHATION STEP 4 FLOAT Detects sulphated batteries. Pulsing current and voltage, removes sulphate from the lead plates Maintaining the battery voltage at maximum level by providing a constant voltage charge. of the battery restoring the battery capacity.
- Page 10 Recommendation: Check the connections of the service Recommendation: Check the service battery with a battery battery and its fuse. tester. Reduce the alternator size or connect another D250SA in +OUT SMARTPASS 120 parallel. The service battery is too deeply discharged.
- Page 11 TECHNICAL SPECIFICATION PRODUCT D250SA SMARTPASS 120 Model number 1044 1058 Input 11.5–23V, 25A 11.5–23V, Max 120A (350A temporarily for 10 seconds.) Output Max 14.4V (14.7V in AGM), 20A Max. 23V, 120A Back current drain Less than 1Ah/month Less than 7Ah/month...
- Page 12 CTEK or its authorised representatives. One of the screw holes in the bottom of the product may be sealed. Removing or damaging the seal will void the warranty. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e.