M Series

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NZD640.00 each


Highly efficient 25A battery charger with 5 year warranty

For everyday mobile and marine use

The M25 is an innovative, versatile and highly efficient 25A battery charger designed around the needs of the mobile and marine professional. Combining power & advanced technology with safety, portability and flexibility to work with any 12V battery including Lithium-Ion (LiFePO4), the M25 is the perfect solution for mobile homes, marine or fixed installations.

Advanced technology will ensure that a safe, fast charge is delivered to exactly meet the needs of the individual battery. The M25 has a dedicated lead-acid battery reconditioning programme to restore battery life & recondition flat batteries. AGM charging profile and Lithium charging profile. It has low voltage & current ripple, so it’s safe for the battery & the applications delicate electronic systems. Fully automatic & easy to use, it’s also very simple to connect, spark proof and reverse-polarity protected to protect the user & also the battery. 

  • Dedicated Lithium-Ion (LiFeP04) mode
  • Dedicated AGM mode
  • Dedicated Wet cell mode along with Recond mode
  • Compatible with batteries from 40Ah to the maintenance of 500Ah (30Ah to 450Ah LiFePO4).
  • Fully automatic, easy to use and simple to connect
  • Spark proof
  • Reverse-polarity protected.
  • Integrated safety features, so it’s safe for the battery & the electrical components.
  • Built-in temperature sensor to achieve maximum charge levels
  • IP44 rating

Technical information
Ambient temperature; -20˚C to +50˚C
Positioning; Portable, Mounted
Warranty; 5 years
Input; 220–240VAC, 50–60Hz, 2.9A max
Output; 14.4V/15.8V/14.8V, 13.3, 25A max, lead-acid or lithium battery
Start voltage; 2.0V
Back current drain*; Corresponding to less than 1Ah/month
Battery types; 12V:, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4
Battery capacity; 40–400Ah, lead-acid battery types. 30–450Ah, LiFePO4
Battery capacity (maintenance); 500Ah
Charge cables length; 2000 mm (DC cable)
Mains cable length; 1900 mm (AC cable)
Net weight (unit with cables); 1.8 kg
Gross weight (unit in box); 2.2 kg
Insulation class; IP44 (outdoor use)
Ripple**; Less than 4%
Model Number; 40-199

NZD475.00 each


The M15 is a powerful and fully automatic 15A battery charger and maintainer, compatible with any 12V battery system, including Lithium-Ion (LiFePO4). The strong internals doesn't derate in heat meaning your 15A is still 15A charing until the battery is charged. Ideal charger for time constraint charging of one time overnight recharges. Ideal for dual battery car setups, the caravan, motorhome or the boat.

  • Charges and maintains batteries from 20 Ah up to 350 Ah (20-300 Ah for lithium).
  • Recond program.
  • Lithium, AGM, wet-cell charge profiles (inc Ca/Ca).
  • Automatic temperature compensation for high efficiency.

Technical Information
Warranty; 5 years
Battery Types; 12V lead-acid batteries, 12V lithium (LiFePO4) batteries
Battery capacity; LEAD-ACID:20-275Ah, LITHIUM: 20-300Ah
Battery capacity (maintenance); 350Ah
Charge cables length; 2000 mm (DC cable)
Mains cable length; 1900 mm (AC cable)
Insulation Class; IP44 (outdoor use)
Model Number; 40-188

NZD316.00 each


The all in one charger and power supply

Flexible charging

The smart and flexible M100 is perfect for tough marine environments as well as workshop or automotive uses..

The M100 8 step 12V battery charger and maintainer can utilise the wide range of accessories from CTEK but comes with M10 eyelets as a point of difference from the MXS 7.0 which is essentially the same model. Its three selectable program modes make it suitable for use with 14-225Ah batteries and AGM batteries, and it can automatically detect whether your battery is near the end of its life. The M100 also has a Recond mode for reconditioning deeply discharged batteries and it can even be used as a 12V supply source, for example if you need to remove the battery without losing your settings or power an LED without a battery connected.

  • Charges batteries between 14-150Ah, maintenance charging up to 225Ah
  • Temperature compensated charging via external temp sensor integrated into DC cable
  • Three programs – Normal, AGM and Recond
  • Can also be used as a 12V power source to protect electrical settings
  • Fully automatic 8 step charging for maximum performance and extended life
  • Safe spark free operation
  • Short circuit proof
  • Reverse polarity protection

Technical information
Ambient temperature; -20˚C to +50˚C
Positioning; Portable, Permanent installation/on board
Warranty; 5 years
Input; 220-240VAC, 50-60Hz
Output; 14.4V, 7.0A max
Back current drain*; Corresponding to less than 1Ah/month
Battery types; 12V:, WET, MF, AGM, GEL
Battery capacity; 14–225Ah
Insulation class; IP65 (splash and dust proof)
Model Number; 56-614