How To Charge Boat Battery With Solar Panel

Solar panel converting dc electricity for charge or run ac device use inverter.

How to charge boat battery with solar panel.

A battery stores this current so that you can use it to support your boat s electricity needs. Deltran 10 watt tender battery charger the positive. It comes with a five year warranty. So a 24v 140 watt solar panel at minimum up to a 24v 300 watt solar panel ideally is what would be needed.

To put it simply the dc wires are connected from your onboard battery charger to your batteries and then the ac wiring comes from a panel on the batteries to the charger. Make sure you check the instruction manual for your charger to do this properly and consult an expert if you are not sure. When you connect the solar panel to the battery you will see the voltage rise and when it reaches to near 14v it means the battery is fully charged. When sunlight hits a boat s solar panels it generates an electrical current.

Then run wires from the battery to the charge connector making sure to match the positive and negative poles. Connect the battery cable to the charge controller. All batteries self discharge and a small panel can eliminate the problems caused by dead batteries. Most marine solar panel systems also require charge controllers to prevent the batteries from receiving more voltage.

Divide the wattage of the solar panel by the voltage of the battery to get the number of amps your charge connector needs to handle. A solar panel is essentially a battery charger that transforms sunlight into an electrical dc charge. Check the charge controller. A solar panel can keep the battery fully charged when the boat is on the trailer at a mooring or sitting at her slip.

First of all you need to get yourself a solar panel and a voltmeter. Then take the battery capacity which measured in ah and divide it by the amp rating the result from prior computation of the solar panel and then adding 10 of the charging time to it. That way every time you go boating you re charging the boat s battery as well as your own. To charge a battery with a solar panel connect a charge connector to the solar panel.

Make sure you get a standard size panel and avoid buying the larger ones. Charge time battery capacity ah ampere rating of solar panel 10 of ct. Since solar panels put out pure dc power they are excellent chargers as long as they have a regulator in the. Connect the solar panel to the charge controller.

You can keep your boat s battery charged and ready to operate by connecting it to a solar panel. This is a 10 watt solar panel with a built in three step automatic microprocessor charge controller with led indicator lights. For 24v trolling motor batteries it becomes even more difficult to recharge the battery pack with a solar panel. At 10 watt output this panel is good for minimal charging as well as being a reliable trickle charger.