ZH KO JA PL FI NO DA SV NL IT CTEK DC/DC BATTERY CHARGER D250SE AND 12V POWER MANAGEMENT SYSTEM SMARTPASS 120S FOR LEAD-ACID AND LITHIUM-ION BATTERIES FULLY AUTOMATIC 2 YEAR WARRANTY ES FR DE EN USER MANUAL 12V
MANUAL 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 D250SE and SMARTPASS 120S you can be sure of getting maximum performance from your dual battery system. D250SE +IN Input Solar panel Earth Connection SAFETY Temperature sensor 2 m/6 ft.
D250SE • The D250SE is a DC to DC battery charger for a dual battery system with a starter battery and a service battery. • The D250SE charges the service battery either from an alternator or from a solar panel, or from a combination of both. • The D250SE separates the batteries in a dual battery system and thereby replaces, for example, a separation relay, VSR (Voltage Sensitive Relay), diode isolator or a mechanical battery selector.
FUNCTION INDICATIONS D250SE 1 The service battery is being charged by the alternator. 2 The service battery is being charged by the solar panel. 3 The service battery is being charged by both the alternator and solar panel. 4 The service battery is fully charged. The starter battery is being trickle charged by the solar panel. 5 Current saving mode, no charging in progress. CABLE AND FUSE REQUIREMENTS UNIT CABLE D250SE +IN +IN +OUT Connector plate* 0.5 m 2 ft 1m 3 ft. 2m 6 ft.
Figure 2 2 Nm/18 lb-in 6 • EN 90mm/3.57 inches 120mm/4.72 inches Figure 5 250mm / 9.84inches 8 Nm/71 lb-in Max 6 mm Allen key 168mm/6⅝ inches 0. Ø4, 19 9 inc mm he s WARNING! The D250SE and SMARTPASS 120S are not spark-free. Ensure good ventilation. RECOMMENDED TIGHTENING TORQUES Figure 1 Figure 3 Max 6 mm 65mm / 2.53 inches WARNING! The D250SE and SMARTPASS 120S are not protected against reversed polarity. Disconnect the battery terminal posts before installation. DIMENSIONS 210mm/8.
120S SYMBOLS AND TERMINALS Smart alternator cable (red) Type of alternator Battery select cable (black) Battery type Not connected Conventional alternator Not connected NORMAL Connected Smart alternator Earth AGM +12V LITHIUM-ION See ”CABLE AND FUSE REQUIREMENTS” Fuse Flashing lamp Continuously lit lamp Solar panel Non critical consumer Alternator EN SETTINGS D250SE Critical consumer Temperature sensor Connection Smart alternator cable (red) Batt ery se 0.2 lect ca m/0 ble .
INSTALLATION EXAMPLES 1. Solar panel PREREQUISITES Solar panel capable of charging a 40–300Ah service battery. The D250SE uses MPPT (Maximum Power Point Tracker) to maximise the power from a solar panel. 2. Small service battery TIP 1 Do not connect two solar panels in series. Max. input voltage 23V. PREREQUISITES A dual battery system where the D250SE charges a 40–300Ah service battery from a generator which also charges a starter battery.
PREREQUISITES A dual battery system where the D250SE charges a 40–300Ah service battery from a solar panel, an alternator, or both which also charge a starter battery. 4. Service battery with parallel consumers It is advantageous to use this installation when: • The alternator is not able to deliver the desired charge voltage. • Charging from a solar panel. See also tips 1, 2 and 3.
5. Large service battery with parallel consumers PREREQUISITES A dual battery system where a D250SE together with a SMARTPASS 120S charges a 100–800Ah service battery. Current is supplied from a solar panel and/or an alternator. The starter battery is charged from an alternator. It is advantageous to use this installation when: • The alternator is not able to deliver the desired charging voltage. • The service battery capacity is greater than 100Ah. Parallel consumption takes place during charging.
D250SE CHARGING PROGRAM LEAD-ACID BULK ABSORPTION FLOAT PULSE 11 2 3 4 5 CURRENT (A) EN VOLTAGE (V) DESULPHATION 15.8V AGM 15.8V Time limit: 4h Increasing voltage to 14.4V. 20A Increasing voltage to 14.7V. 20A Declining current 14.4V Declining current 14.7V 13.6V Max 20A 13.6V Max 20A 8h 12h 2h STEP 1 DESULPHATION Detects sulphated batteries. Pulsing current and voltage, removes sulphate from the lead plates of the battery restoring the battery capacity.
D250SE CHARGING PROGRAM LITHIUM BULK ABSORPTION FLOAT PULSE 2 3 4 5 CURRENT (A) VOLTAGE (V) ACCEPT 11 LITHIUM Max 5.0A Time limit: 2h Max 20A until 14.2V Max 14.2V 13.3V Max 20A 20h 4h 2h 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.
SMARTPASS 120S FAULT INDICATIONS Reason: The apparatus and/or the service battery has a temperature that is too high. Recommendation: Consider moving the apparatus and/or +IN the service battery to a cooler location. Reason: Service battery is overheating. Recommendation: Check the service battery with a battery +OUT tester and/or check the installation. Reason: The service battery has a connection problem. Recommendation: Check the connections of the service +IN battery and its fuse.
TECHNICAL SPECIFICATION PRODUCT Model number Input Output battery D250SE SMARTPASS 120S 1044 1058 11.5–23V, 25A (Max OCV solar panel 23V) 11.5–23V, Max 120A (350A temporarily for 10 seconds.) Max 14.4V (Normal), 14.2V (Litihum-ion), 14.7V (AGM), 20A Max. 23V, 120A continuously up to 350A in obout 30 seconds Less than 1Ah/month Less than 7Ah/month Output consumer Back current drain Ripple* Max.
*) The quality of the charge voltage and charge current is very important. A high current ripple heats up the battery which has an aging effect on the positive electrode. High voltage ripple could harm other equipment that is connected to the battery. CTEK battery chargers produce very clean voltage and current with low ripple. EN **) MPPT (Maximum Power Point Tracker) finds the best combination of current and voltage so that the output power is maximised.
