@Blinkster Thank you for your inquiry regarding pairing a solar panel with your EB3A. Our technical team has provided some helpful information and suggestions.
Firstly, we recommend purchasing a PV200 solar panel as it has an open-circuit voltage of 26.1V, which is below the required voltage of 28V for the EB3A. This panel can provide up to 200W of charging power to your EB3A.
Alternatively, you can use your first option of connecting 2 x 12VDC 100W panels in series to get 24VDC. This will enable the EB3A to charge at 200W with 24V batteries. Your second option of using a single 18VDC 200W panel is also possible but the charging power will be limited to a maximum of 153W (18V * 8.5A). Unfortunately, there is no simple way to step down a high-powered 200W panel to 28VDC for the MPPT.
I plan to go the 2 x 12V Solar route in the interim.
I am looking at future proofing as well with 24V batteries for storage and a Victron Blue Solar MPPT charge controller. Can you advise on the below proposal?
Solar panels > Victron Blue Solar MPPT Charge Controller (24VDC batteries) with the DC load output going straight to the EB3A MPPT.
From what I understand the load output will be 24VDC, 10A and the EB3A will limit the input current to 8.5A. I will achieve 200W charging this way.
@Blinkster Thank you for your update. Your proposal sounds feasible. But the only thing to be aware of is that this type of setup requires the customer to DIY the wiring and be very careful to ensure the correct positive and negative connections.
One of the great things about Bluetti devices is that they accepts standard solar connections. Unlike some other brands which have a special connector pressuring you to use their own overpriced panels.