Ask us what you want! arrow1
Still can't find what you want? Please email us at
Or click here for online form. We may have the item in stock.
CTEK M300 12V 25 Amp Marine Battery Charger
larger imageMove mouse over the image to magnify



CTEK M300 12V 25 Amp Marine Battery Charger

CTEK M300 is a 25A smart charger designed for marine and motorhome permanent installation. It is an 8-step, fully-automatic battery charger developed to make boat & RV life more convenient. Included is a second charger for your starter battery.
NZ $670.00
Incl GST

CTEK charger features:

  • Eight step, fully automatic switch mode.
  • Revives, charges, checks and maintains virtually all types of 12V lead-acid batteries (Wet, MF, GEL and AGM) from 50Ah to 500Ah.
  • Desulphation mode with pulses.
  • Soft start for severely discharged batteries.
  • Recondition mode with controlled top charging recovers the capacity of a severely discharged battery.
  • Maintenance pulse charging increases battery life and gives superb performance.
  • Charges even drained batteries.
  • Temperature compensated for optimal charging voltage at all times.
  • The charger can be connected for months, ideal for seasonal vehicles.
  • Compact design with mounting holes for permanent assembly.


Technical specs:

  • Input voltage: 170-260VAC, 50-60Hz
  • Efficiency: 85%
  • Charging voltage: 14.4V, Temperature compensated
  • Back current drain: <2Ah per month
  • Ripple: <4%
  • Ambient temperature: -20°C to +50°C, output power is reduced automatically at higher temperatures.
  • Cooling Fan
  • Type of charger: Eight step, fully automatic, switch mode with pulse maintenance.
  • Battery capacity: 50-500Ah
  • Insulation IP 44 (Outdoor use)
2 yr warranty.


You might also be interested in ...

926-25100 La Crosse Alert Remote Temp & Humidity
NZ $128.40
Incl GST
Compatible HP 901 XL Ink Cartridge Set
NZ $60.97
Incl GST
Compatible Canon E31 E40 Black Toner Cartridge
NZ $67.44
Incl GST
PANASONIC SUB-C Size Ni-Cd Battery with Tag
NZ $9.98
Incl GST

Create an account with us to remember your details and take advantage of our account management functions.


Interested in selling our products ?

If you would like to become a reseller, please email our sales department, or download our Trade Application from here.


Scan the QR to add us on WeChat