Magic 12/12 - 20A Charger Converter

The Magic 12/12-20A is a DC-DC converter designed to stabilize a 12V DC input (range 11–16V) to a strictly regulated 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 on-board 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 NMEA networks.

This converter delivers a continuous power of 300W with a maximum output current of 20A in stabilized power supply mode. When used in battery charging 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-wound, traction, and Lithium-Ion batteries. Charging parameters can also be customized by the user.

Absolutely. The converter includes a 3-stage smart charging algorithm (Bulk, Absorption, Float) that is fully compatible and configurable to ensure safe charging 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, installing the DC-DC converter directly above the batteries (especially open-lead models) is strongly discouraged due to the risk of corrosive gas emissions that could damage the device's internal electronics.

The screw terminal on the device accepts cables with a maximum cross-section of 16 mm² (AWG5). It is essential to use high-quality cable ferrules to ensure a reliable and secure connection 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 fully supported. You can couple multiple Magic 12/12-20A converters to increase total current capacity (up to over 100 amps) to power large onboard consumers.

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, inverter) 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 switches to safety mode to prevent any material damage.

The alarm contact relays an alert to an external system. Under 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) and weighs 1.8 kg in total.

Although the factory-set nominal output voltage is 13.6V, it can be adjusted between 10V 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 inverter delivers excellent efficiency above 90% at full load, with peaks reaching 92%. This significantly reduces heat dissipation and optimizes the energy from your batteries.

Standby power draw is extremely low, measured at less than 2 mA. However, to prevent slow battery discharge during 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 PC-based configuration. The technical documentation specifies that it is not designed to connect a battery temperature sensor or direct remote control panels.