Bow Thruster Battery

Refer to the bow thruster current requirements to determine this figure.

Bow thruster battery.

The engine is normally running at low revs for perhaps 30 to 40 minutes at. A starter battery can take a short heavy load called cca cold cranking amps but a domestic battery is designed to take a long deep discharge at a lower amperage but over several. In september s magazine nigel calder answers a reader s query about installing a bow thruster battery. To be sure you will need to have a comprehensive test performed on the battery to confirm this.

During the boating season the batteries are able to supply both small constant loads as well as heavy but short loads for the use of a bow thruster. Have someone activate the bow thruster while you measure the voltage across the terminals. If the voltage drops below about 10 5 volts the battery may indeed need replacement. Sorry to be late on this thread but the bow thruster must be on the starter battery unless it has its own battery on a separate circuit with a charge splitter.

We strongly advise the use of a float charger during winter storage. The anchor windlass batteries are in the engine room about 45 feet away. Since then the trollbridge chargers for 24 volt equipment have been introduced that can handle winches and bow thrusters up to 15 horsepower. Parts list automotive battery with enough capacity to run the device for the longest job.

Here is the full text of the question and reply dear ym i wish to fit a bow thruster which is rated at 575ah to my sailing yacht. The battery capacity of the auxiliary will be a function of how long you think you will need the bow thruster in one session and how often sessions will occur. So no problem on getting the juice to the battery. Osmotech are the south coast s leading supplier and installer of sleipner side power bow and stern thrusters for yachts and powerboats.

We have supplied fitted maintained and repaired thousands of side power thruster systems on virtually every make and model of yacht powerboat and and motor cruiser. This article was written for a 12 volt winch or bow thruster.