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CTEK M300 - Complete marine charging for large boats

Product No.:
on stock on stock
283,90 EUR
incl. 19% tax excl. Shipping costs

M300 is CTEKs powerful charger for boat owners with larger need of quick and effective charging. M300 is temperature compensated, it reconditions a stratified battery with the special RECOND mode, and this is needed after several deep discharges which is common in the marine environment.

The larger CTEK’s Marine chargers have 4 meter cables and eye-leads for easy installation in the boat.

M300 delivers 25A and has IP44-classification. All CTEK chargers are spark free, short circuit proof and will not harm the electronic equipment.

Eyelet M10 (10,4 mm)
Temp sensor on cable


Auto: Fully automatic for optimal charging
12V:  For all lead-acid batteries
Fully Charged Battery / Maintenance Charging
Temperature sensor
RECOND: Recondition of deeply discharged batteries
NIGHT:    charging at reduced power and with deactivated fan for 8 hours
Cooling Fan
Volt 12V
Rated Voltage AC 220–240VAC, 50–60Hz
Charging voltage 14.4V
Min battery voltage 2.0V
Charging current 25A max
Current, mains 2.9A 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 8 step, fully automatic charging cycle
Battery types All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity 40–300Ah up to 500Ah for maintenance
Dimensions 235 x 130 x 65mm (L x W x H)
Insulation class IP44
Weight 2.2kg