How To Charge 24v Battery With Solar Panel

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.

How to charge 24v battery with solar panel.

Generally a 12v solar panel should be paired with a 12v battery and a 24v solar panel should be used with a 24v battery. Again assuming a fully depleted battery you would need 20 amps average charging current 100 ah 5 hours. In our demo below we re using the midnight kid mppt charge controller for solar panels we ve got a canadian solar 280 watt panel that s 24v and a solarworld 75 watt 20v panel. You can either get that with one 72 cell 24v nominal solar panel or wiring two 36 cell 12v solar panels in series just like you did with the batteries.

We have done previous demos showing the difference between a 20v 60 cell and a 24v 72 cell solar panel what we want to show today is some real world usage of it. Trying to use either of them to charge a 24v deep cycle battery bank. 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. The same thing 24v solar system has an eq at about 30 volt you should have at least 30v to power the solar controller for a 24 volt system.

And you need more voltages than the battery to pump a charge into them. 20 30 amps hour. Now on the voltage of the panel you need a panel capable of up to 14 5 volts to fully charge the battery even when it starts charging at. To charge 200ah 24 volt battery bank you will be required between 10 15 current of the total battery power i e.

This means that on that scenario the solar panel delivered 60 watts of power to charge the battery. 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. 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. You need a total of 72 cells the squares on the solar panel to charge your 24v battery bank.

A lot of people will call and say they ve got a 60 cell solar panel and want to charge a 24 volt battery bank with it. In part one of our series we demonstrated how to charge a 24v battery with 20v solar panel pwm charge controller today we re going to be doing the same demo but using an mppt charge controller instead.