In short, Yes, a 12v solar panel can charge a 24v battery. To get the maximum from a 12v solar panel to charge your 24v battery use an MPPT charge controller or connect two 12v solar panels in series to charge a 24v battery using a PWM charge controller. .
Note: Click here to read our in-depth post on how to use this calculatorand what factors it takes into account and some shortcomings of this. .
Here's a chart on what size solar panel you need to charge different capacity 24v lead-acid and Lithium (LiFePO4) batteries in 5 peak sun hoursusing an MPPT charge controller. .
Here's a chart about what size solar panel you need to charge a 24v 100ah lead-acid and lithium battery using an MPPT charge controller with different peak sun hours. .
Here's a chart about what size solar panel you need to charge a 24v 200ah lead-acid and lithium battery using an MPPT charge controller with different peak sun hours. The good news is that most solar panels are built this way, which is why 12V solar systems can use 18V or more power sources. A 24V battery bank, however, would need panels capable of providing a voltage higher than this (charge) to receive a full charge.
[pdf] A 12V solar panel will typically have a Voc of approximately 18V, whereas a 24V panel will have a Voc of approximately 36V. To confirm your solar panel voltage accurately, do the following: Use proper safety gear.
[pdf] EGE (Cambodia) Energy Solutions Co.,Ltd. Namely EGE Cambodia was officially registered on 25 January 2021 through the Ministry of Commerce with two activities: distributor of solar energy materials (solar panels, solar pumps, inverters, batteries , solar cold storage and accessories) and provider of solar solutions (design, installation, project management and consults).
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