Magic 12/12 - 20A Charger Converter

The Magic 12/12-20A is a DC-DC converter designed to stabilize a 12V DC input (range 11 to 16V) to a strictly maintained 13.6V output. It can function as a stabilized power supply, a 3-stage battery charger to recharge a secondary 12V battery bank, or as a dimmer for onboard lighting.

Yes, the Magic series features full galvanic isolation between input and output. This eliminates ground loops and electromagnetic interference, effectively protecting sensitive navigation equipment such as VHF, chartplotters, or the NMEA network.

This converter delivers a continuous power of 300W with a maximum output current of 20A in stabilized power mode. When used in battery charger mode (3-stage algorithm), it delivers a charging current of 16A.

In charger mode, the Magic 12/12-20A is compatible with a very wide range of 12V batteries, including flooded lead-acid, Gel, AGM, spiral, traction, and Lithium-Ion batteries. Charging parameters can also be custom-set by the user.

Absolutely. The converter integrates a 3-stage smart charging algorithm (Bulk, Absorption, Float) that is fully compatible and configurable to ensure safe recharging of Lithium-Ion battery banks.

The device has an IP21 protection rating. It must be installed in a well-ventilated area, protected from rain, condensation, moisture, and dust. It is strongly recommended to mount it vertically with cables oriented downward to ensure optimal heat dissipation.

No, it is strongly advised against installing the DC-DC converter directly above batteries (especially open lead-acid models) due to the risk of corrosive gas emissions that could damage the device's internal electronics.

The device’s screw terminal accepts cables with a maximum cross-section of 16 mm² (AWG5). It is essential to use high-quality cable ferrules to ensure reliable and secure connections on the DC inputs and outputs.

Yes, although the converter has internal protection (non-replaceable fuse), it is essential to install a fuse on the positive wiring, placed as close as possible to the source battery, to protect the electrical line in compliance with safety standards.

Yes, parallel operation is entirely possible. You can couple multiple Magic 12/12-20A converters to increase the total current capacity (up to over 100 amperes) to power large onboard consumers.

The basic configuration is done via four DIP switches located inside the device, accessible by removing the rear cover. They allow you to select the operating mode (power supply, 3-stage charger, dimmer) and enable parallel operation.

The dimmer function allows you to control the intensity of a 12V lighting circuit without wasting energy as heat. It is activated via the DIP switches and controlled using a momentary switch (push button) connected between the "switch" terminal and the output ground.

Yes, the Magic 12/12-20A is equipped with advanced electronic protections against overloads, short circuits, and overheating. In case of a fault, the device automatically goes into safety mode to prevent any material damage.

The alarm contact relays an alert to an external system. In normal operation, the contact is closed. It automatically opens if the input voltage is too low or too high, in case of overload, short circuit, or simply if the device is powered off.

Yes, the device is compatible with the MasterBus communication network, but this requires the use of a specific MasterBus serial interface (available as an option) to be connected to the device's communication port.

The converter is designed to be compact and robust. It measures 227 x 154 x 81 mm (Height x Width x Depth) for a total weight of 1.8 kg.

Although the nominal output voltage is factory-set to 13.6V, it can be adjusted between 10 and 15V. This fine adjustment is performed via software using the MasterAdjust program and a PC-Link interface connected to the device’s QRS232 port.

Thanks to its high-frequency switching architecture, the converter delivers excellent efficiency above 90 % at full load, with peaks reaching 92 %. This significantly reduces heat dissipation and optimizes battery energy.

Idle current draw is extremely low, measured at less than 2 mA. However, to prevent slow battery discharge over long periods of winter storage or inactivity, it is recommended to disconnect the converter from the power source.

No, the communication port on the converter is exclusively for configuration via PC. The technical documentation specifies that it is not designed to connect a battery temperature sensor or direct remote control panels.