My Solar Panel Will Not Charge 24v Battery

How do we tell if the solar panel is charging the batteries on our 2002 motorhome.

My solar panel will not charge 24v battery.

If you did provide 24 volts to the charge controller how much voltage will it apply to the battery which is important because 24 volts is probably too much. So a 24v 140 watt solar panel at minimum up to a 24v 300 watt solar panel ideally is what would be needed. Once you ve attached the input wires to the charge connector you should have 2 loose wires each ending in an mc4 connector. Gary bunzer aka the rv doctor re.

If you are using a group 27 to 31 battery you need a panel double the wattage of the 12 volt solar panels mentioned above. If you have added extra wire or an extension to your lead wires you can measure the voltage at the end of these. For 24v trolling motor batteries it becomes even more difficult to recharge the battery pack with a solar panel. You can get the amount of energy it will provide the battery by multiplying 10 watts by 6 hours which will give you 60 wh.

So if you have a solar panel that with a 10 watts power rating and it is exposed to sunlight for at least 6 hours. Generally a 12v solar panel should be paired with a 12v battery and a 24v solar panel should be used with a 24v battery. Your panel is rated at 12 volts and 5 watts. An important point to be noted here is that a 24v rating battery is not available in the market but you can create one by joining two 12v batteries in a series connection.

Thus assuming it is getting sufficient sunlight its maximum current is 0 42 amperes. Depending on your solar panel size and type your lead wires can end on either bare wires or a quick connect plug as the ones as the ones shown. Connect the wires from the controller to the solar panel. This means that on that scenario the solar panel delivered 60 watts of power to charge the battery.