Alternator With A Solar Panel

The purpose of a controller is to prevent batteries from being overcharged apply the optimal charging current to the battery bank and prevent current from back flowing from the batteries to the solar panel at night.

Alternator with a solar panel.

Enable dc dc charging from your alternator to a secondary lithium agm or flooded battery bank. The charge controller should not be hooked up in line between the alternator and battery. This kit is ideal for van conversions and skoolies with older alternators or lithium batteries with input current limits under 100a. If you have two devices tied directly to the battery and each can provide a way to charge the battery at the same time you may end up with an overcharged battery or backfeeding one charging system with the other.

So far this 445 watt solar panel setup combined with the alternator has worked perfectly. For simplicities sake think of it as power going from the alternator or the charge controller to the batteries but not the other direction. This setup helps to simplify the needed calculations for this type of power. Most rv s have a way of isolating the power coming from the alternator or another source like generator or solar charge controller.

One method of doing this is to use the alternators to recharge storage batteries. Your solar panel s and charge controller are coming from an entirely different path. But the module cost makes up only about 33 percent of the total cost of building operating and maintaining a solar plant. Example you have 300 watts of solar panels on your camper s roof and two 12 volt batteries.

Solar controller except for small trickle charge systems all solar systems should have a solar controller. An alternator works by converting mechanical energy into electrical energy. Outside van estimated that in ideal sunny conditions my solar panels can pull up to 30 amps per hour. You can use car alternators to power a home.

In two months we haven t had to plug in a single time and i haven t seen my battery voltage drop below 12 4 which is about 75 full.