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CTEK Multi XS-3800 Battery Charger Key Benefits & Features: The Ctek Multi XS 3600 battery charger is perfect for the smaller boat or a starter battery. The Multi XS 3600 is a smart and practical battery charger for all types of lead-acid batteries and can even be used on Gel and AGM batteries, where conventional transformer chargers are not suitable. The Multi XS 3600 can be connected for long periods of time in it's protective pulse maintenance mode, and is safe for use with all electronics, so you don't have to disconnect the battery from your boat. The Multi XS 3600 is spark-free, short circuit-proof, and reverse polarity protected. It can charge drained and sulphated batteries. Even if the mains voltage is as low as 170 Volts. Splash and dust proof (IP65) and approved for outdoor use. Features General Four step, fully automatic switch mode model. Charges lead-acid batteries (Wet, MF, GEL and AGM) from 1.2Ah to 120Ah. Maintenance pulse charging increases battery life and gives superb performance. Charges even drained batteries. Pulse recover of slightly sulphated batteries. Three unique charging modes for use on small batteries, large batteries and a special cold mode that is also suitable for AGM batteries. Low back current drain, low ripple and input voltage independent (170-260V). High efficiency: 85% Delivered with two interchangeable connection leads, one with clamps, and one with eyelet terminals. The charger can by connected for months, ideal for seasonal vehicles. Compact design with mounting holes for permanent assembly. Safety Electronic safe, the charger will not damage vehicle electronics. The battery does not normally need to be disconnected from the vehicle when charging. Minimal gas build-up and a patent-pending spark protection system. Short circuit and reverse polarity protected. Double insulation. Splash and dust proof (IP65) and approved for outdoor use. Progressive temperature protection. Tested and approved by Intertec SEMKO AB. S-marked and conforms to the following standards: EN 60335-1, EN 60335-2-29, EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3, EN 60555-2. Charging Characteristics The Multi XS 3600 has a fully automatic, four step charge: 1. Desulphation Runs a complete charge cycle within a fraction of a second. The cycle repeats during the whole desulphation phase. Every cycle recovers some lead sulphate into useful material. 2. Bulk Charging where 80% of the energy is returned. The charger delivers a constant current until the battery voltage has reached the set level. 3. Absorption Final part of the charge up to 100%. The battery voltage is kept constant at the set level, during which time the current drops gradually. 4. Pulse Maintenance charging. The state of charge varies between 95% and 100%. A pulse is sent out to the battery if the voltage drops. This keeps the battery in trim when not in use. The charger can be connected for months at a time. Using the MULTI XS 3600 gives your battery an optimum service life and operational reliability. Specifications Input voltage AC: 170-260VAC, 50-60Hz Output voltage: Nominal: 12V Efficiency: 85% Charging Voltage: 14.4V/0.8A, 14.4V/3.6A, 14.7V/3.6A Charging Current: 3.6A max Back Current Drain*: 1.3mA Ripple**: Max 50mV rms, 0.13A Ambient Temperature: -20°C to +50°C, output power is reduced automatically at higher temperatures. Type Of Charger: Four step, fully automatic switch mode with pulse maintenance. Type Of Batteries: 12V lead-acid batteries (Wet, MF, AGM and GEL) Battery Capacity: 1.2 -120Ah Dimensions (L x W x H): 165mm x 61mm x 38mm Insulation: IP 65 (splash and dust proof), outdoor use Weight: 0.5kg * Back current drain is what drains the battery if the charger is connected without the power cord connected. The MULTI XS 3600's extremely low back current drain corresponds to 1Ah per month. Many other chargers have 1Ah per day. ** Ripple denotes the amount of interference there is to the current and voltage. A high current ripple heats the battery and shortens its life. A linear charger has a current ripple of 70 - 400% which is much larger than the maximum 5% for a modern sealed battery. Voltage ripple could harm other equipment, which is connected to the battery. The MULTI XS 3600's ripple is only 2%. The battery gains a long service life and there is no risk of damage to other electronic devices connected to the battery. Dimensions The charger can be easily fitted in place using two screws. This diameter of the mounting holes is 4.5mm located as shown in the image above.