
Marine charging for small boats
Even small boats with 12V-batteries (7-75Ah and up to 120 Ah for
maintenance charging) require a charger designed to withstand the
demanding marine environment. The CTEK M45 Marine Battery
Charger is a high quality 4-step charger with unique
functions such as desulphating and safe maintenance charging
between seasons.
Choose your own charging program
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
Splash and dustproof
IP65 classification means that M45 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.
CTEK M45 Marine Battery Charger
Specifications:
- Auto: Fully automatic for optimal charging
- Natural convection
- 12V: For all lead-acid batteries
- Fully Charged Battery / Maintenance Charging
- 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 (L x W x H): 165 x 61 x 38mm
- Insulation class: IP65
- Weight: 0.5kg
CTEK M45 Marine Battery Charger User Manual
CTEK M45 Marine Battery Charger Product Datasheet













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