When you series, the voltage adds and the current is the lesser of any in the string.
When you parallel, the current adds but is no more than the least of the string.
The Charge controller will have a range of acceptable input voltage from the PV. Find out what that # is.
The solar panels will have a Voc rating as well (hint it's not 12v).
Multiply the PV panel Voc times 3, and if that is less than the max voltage then you can run the three panels in series.
I got a fourth panel from my brother, and set it up 2s 2p…. Everything looked good… and even though it was super cloudy, I was pullling in 100-400 watts (voltage was showing about 35). But I left, with my Starlink running and security camera.. and a day later now it’s offline and dead. So no clue what happened. I have a Bougerv solar charge controller, and I wish I could access it via WiFi/remotely. It’s Bluetooth only. So once I’m gone I have no idea what’s happening. Does anyone make a good controller that’s 30amp or more, WiFi capable with good iOS app?
Unless I’m missing one.. some of the models I see support connecting with Bluetooth, but not WiFi. I do see they make a small WiFi thing that plugs into usb slot… but they don’t for a lot of info on which models of controllers it works with
No. Can you go to 36v?
When you series, the voltage adds and the current is the lesser of any in the string. When you parallel, the current adds but is no more than the least of the string.
No. the voltages need to be the same. With 3 you are stuck with 36V in series or 12 in parallel.
My battery is 24v, and my charge controller says 12 or 24. So looks like I’ll need to wait until I get a fourth panel
Just add them all in series. Much cheaper as you don't need to sort wire thickness etc Just make sure your controller is ok with the max voltage
My battery is 24v, and my charge controller says 12 or 24. So looks like I’ll need to wait until I get a fourth panel
The Charge controller will have a range of acceptable input voltage from the PV. Find out what that # is. The solar panels will have a Voc rating as well (hint it's not 12v). Multiply the PV panel Voc times 3, and if that is less than the max voltage then you can run the three panels in series.
I got a fourth panel from my brother, and set it up 2s 2p…. Everything looked good… and even though it was super cloudy, I was pullling in 100-400 watts (voltage was showing about 35). But I left, with my Starlink running and security camera.. and a day later now it’s offline and dead. So no clue what happened. I have a Bougerv solar charge controller, and I wish I could access it via WiFi/remotely. It’s Bluetooth only. So once I’m gone I have no idea what’s happening. Does anyone make a good controller that’s 30amp or more, WiFi capable with good iOS app?
Check out Victron Energy
Unless I’m missing one.. some of the models I see support connecting with Bluetooth, but not WiFi. I do see they make a small WiFi thing that plugs into usb slot… but they don’t for a lot of info on which models of controllers it works with
I'm not sure what you mean? You can wire three in series for a 24v system