99203 - Dolphin Charger 24/48V 15A DC Converter

DC-DC Converter - 24/48V - 15A

Your boat has a 12V alternator, and you need to charge a 24V or 36V battery “on the run”? Dolphin has the solution. Our boosters are true DC/DC chargers with a 3-stage smart charge feature. Compatible with 4 different technologies, including Gel, AGM, or Lithium LIFEPO4. Dolphin booster is the perfect choice to charge your bow thruster or trolling motor batteries!

Flexibility & Versatility

BOOSTER units are designed to charge a 24V, 36V, or 48V auxiliary battery from a single 12V or 24V power system, ideal for new installations or for updating older systems. Thanks to recharging during navigation, auxiliary batteries are always available. No need to wait until you’re connected to the shore to recharge. This product range extends from 12/24V (charging at 30A), 12/36V (charging at 20A) up to 24/48V (charging at 15A).

Efficient Power Conversion

Small is beautiful: our engineers have made it compact. BOOSTER is only half the size of a conventional charger of equivalent power!

Faster Charging Times

BOOSTERS are intelligent marine battery chargers featuring an advanced and unique 4-stage charging program. This reduces charging time by 50% compared with charging from a basic alternator. with different battery chemistry settings (Lead, Gel, AGM, Lithium, LifeFO4).

Compatibility with Different Voltages

BOOSTERS are smart battery chargers featuring four different battery profile, Lead, Gel, AGM, and Lithium LifeFO4.

Protection Features

BOOSTER units include automatic protection against battery source drainage, over-current, over-voltage and reverse polarity and built-in fuses protections.

As for all other Dolphin® charger products, the BOOSTER’s assembly process includes conformal coating of the electronic board (PCB) to guarantee an extended lifecycle of your battery charger.

The Dolphin Charger 99203 is a heavy-duty DC-DC converter designed for marine and similar applications requiring efficient auxiliary battery charging. This unit facilitates charging a 48V auxiliary battery from a 24V power system, providing a 15A charge. It is suitable for new installations or upgrading existing systems where auxiliary batteries, such as those for bow thrusters or trolling motors, need to be recharged while the primary power system is active. The converter incorporates a 3-stage smart charge feature and is compatible with Gel, AGM, and Lithium LiFePO4 battery chemistries. It offers protection against battery source drainage, over-current, over-voltage, and reverse polarity, along with built-in fuses. The compact design aims to save space, and its advanced 4-stage charging program can reduce charging times compared to basic alternators. The electronic board features conformal coating for extended lifecycle.