CTEK M45

3.6A chargers for 7-75Ah boat batteries for 7-75Ah

Categories : ALL PRODUCT Marine

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Product Description

   Download CTEK M45 User Manual

Fully compatible with the boat’s electronics & has been developed to offer safe charging.

Even small boats with 12V-batteries (7-75Ah) require a charger designed to withstand the demanding marine environment. Ctek's M45 is a high quality 4-step charger with unique functions such as desulphating and safe maintenance charging between seasons.

Featuring different charging programs: one program for small batteries (approx. 7-30Ah) supplying 0.8A, one program for normal size batteries (approx. 40-75Ah) and one program for AGM-batteries, which require slightly higher charging voltage of 14.7V instead of the usual 14.4V, supply 3.6A.

IP65 classification means that Ctek's M45 Smart battery charger is splash and dustproof. It does not generate any harmful galvanic currents, is fully compatible with the boat’s electronics and has been developed to offer safe charging: non-sparking, reverse polarity protection and short circuit proof.


Cooling Natural convection
Volt 12V
Rated Voltage AC 220–240VAC, 50–60Hz
Charging voltage SMALL, NORMAL: 14.4V, COLD/AGM: 14.7V
Min battery voltage 2.0V
Charging current 3,6A max
Current, mains 0.65A rms (at full charging current)
Back current drain <1Ah/month
Ripple <4%
Ambient temperature -20°C to +50°C, output power is reduced automatically at high temperatures
Charger type 4-step, fully automatic charging cycle
Battery types All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity 7–75Ah up to 120Ah for maintenance
Dimensions 165 x 61 x 38mm (L x W x H)
Insulation class IP65
Weight 0.5 kg

Cooling Natural convection
Volt 12V
Rated Voltage AC 220–240VAC, 50–60Hz
Charging voltage SMALL, NORMAL: 14.4V, COLD/AGM: 14.7V
Min battery voltage 2.0V
Charging current 3,6A max
Current, mains 0.65A rms (at full charging current)
Back current drain <1Ah/month
Ripple <4%
Ambient temperature -20°C to +50°C, output power is reduced automatically at high temperatures
Charger type 4-step, fully automatic charging cycle
Battery types All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity 7–75Ah up to 120Ah for maintenance
Dimensions 165 x 61 x 38mm (L x W x H)
Insulation class IP65
Weight 0.5 kg
5-year warranty

CTEK guarantee to the buyer by the name indicated on the receipt of APRTECH only guarantee can not be transferred to others. The warranty covers only the disorders caused by abnormal production of materials used in production within a period specified by the box from the date of purchase.
The customer must return the product at the point of sale, along with a receipt.

To guarantee an end when the Smart battery charger has been opened or tampered or used carelessly or repaired by other than CTEK SWEDEN AB or its authorized representative. One of the screws on the underside of the charger Sealed.

Detachment or break the seal constitutes cancellation guarantee.

Not guaranteed beyond the conditions set out in this. And is not responsible for damages other than those set forth above, such damages are affected by the damage.

(Consequential damages) Moreover, CTEK SWEDEN AB and APRTECH no obligation to warranty except as specified herein.

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