Ctek M 300 Marine
12V, 25 AProduct details
The M300 is our recommended charger for boats with large battery banks. The charger features a four-meter long secondary cable and a temperature sensor for temperature-independent optimal charging, providing additional flexibility for permanent installations. The M300 is a fully automatic 8-stage charger with a charging current of 25 A; it is ideal for batteries ranging from 40 to 500 Ah.
The M300 analyzes whether the battery can receive and hold the charge; it eliminates harmful lead sulfate crystals, delivers effective charging, and automatically switches to a safe maintenance charge once the charging process is complete.
The practical Recond mode reconditions the battery after deep discharge cycles, which can occur after a long day at sea. If you want to stay on board overnight, you can set the device to night mode; it will then charge particularly quietly.
With an IP44 protection rating, the M300 is suitable for outdoor use. It does not generate harmful galvanic currents, produces no voltages that could damage onboard electronics, and is designed for safe charging: spark-proof, reverse-polarity, and short-circuit protected.
Vehicle | Boat |
Suitable battery technology | AGM, Lead Acid Gel, Lead-Acid WET |
Safety function | Reverse polarity, Short circuit |
Loading programs | Conservation mode, Desulphation, Loading capacity test, Reconditioning |
Documents | |
Item number | 5662273 |
Manufacturer | Ctek |
Category | Car battery chargers |
Manufacturer no. | 56-298 |
Release date | 16.12.2015 |
Vehicle | Boat |
Suitable battery technology | AGM, Lead Acid Gel, Lead-Acid WET |
Loading programs | Conservation mode, Desulphation, Loading capacity test, Reconditioning |
Voltage | 12V |
Charging current (max) | 25 A |
Charging current at 12V | 25 A |
Battery capacity at 12V | 40 - 500 Ah |
Power supply | Electrical connection |
input voltage | 220 V |
Protection type (IP code) | IP44 |
Safety function | Reverse polarity, Short circuit |
Protection class | Protection class II |
CO₂-Emission | |
Climate contribution |
Length | 23.50 cm |
Width | 13 cm |
Height | 6.50 cm |
Weight | 2200 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Car battery chargers» category have a defect within the first 24 months?
Source: Digitec Galaxus- 1.Dino0.1 %
- 2.Ctek0.3 %
- 2.GYS0.3 %
- 4.Einhell0.4 %
- 4.Tecmate0.4 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 1.Einhell0 days
- 2.Ctek2 days
- 3.Noco3 days
- 4.Victron Energy5 days
Return rate
How often is a product of this brand in the «Car battery chargers» category returned?
Source: Digitec Galaxus- 1.GYS0.6 %
- 2.Ctek0.8 %
- 3.Dino1 %
- 4.Noco1.2 %
- 5.AEG1.3 %