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For 150/45, the 150 is max PV voltage. 45 is the amps.
12/24/36/48 is pack voltage.
What I've seen is charge controllers are amp limited. So going to higher battery voltage will allow the controller to deliver higher watts vs lower battery pack voltage.
High PV input voltage allows you to series connect panels and not have to use high gauge wire between the panels and controller
Very likely yes, you will need some sort of solar charge controller, and Victron is a very solid brand.
Work backwards from the voltage of your house battery system (12v/24v/35v/48v), then if you have a general idea of how many watts you want (or can fit) on the RV roof, then that'll roughly give you your amps by dividing your desired watts by the battery voltage - for instance 800 watts divided by 24v battery system = 33.3amps, so you'd likely want a 30a or higher Victron unit. Then the first number in these model names is max solar panel input voltage into the charge controller (i.e. 100V, 150V - the higher the number, the more panels you can put in series - reducing gauge/cost of PV wire, but you can always compromise and run a series & parallel config to kind of get a medium voltage).
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186 Comments
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Timing is perfect. My internals (Mppt, shunt, and multiplus inverter) are all Victron. I have maxed out my 100/30 Mppt. Purchased a 100/50 and adding another 880 watts. Thanks for the heads up.
Ugh, really shouldn't buy, but victron never goes on sale. in for a 150/45, thanks OP. Should make a nicer setup than an epever.
EPever is what I have now - and have an issue where it will get stuck and not do MPPT charging. I have new FW just loaded and it's working but time will tell.
I just read the manual on the Victron 150/45 smart controller, wow there's a lot of features!
Last edited by Probedude November 8, 2023 at 11:25 AM.
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from hunter44102
:
When they say 12V/24v/48v is that the battery bank voltage or the solar panel nominal voltage? What about the 100v? Panel voltage?
For 150/45, the 150 is max PV voltage. 45 is the amps.
12/24/36/48 is pack voltage.
What I've seen is charge controllers are amp limited. So going to higher battery voltage will allow the controller to deliver higher watts vs lower battery pack voltage.
High PV input voltage allows you to series connect panels and not have to use high gauge wire between the panels and controller
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12/24/36/48 is pack voltage.
What I've seen is charge controllers are amp limited. So going to higher battery voltage will allow the controller to deliver higher watts vs lower battery pack voltage.
High PV input voltage allows you to series connect panels and not have to use high gauge wire between the panels and controller
Work backwards from the voltage of your house battery system (12v/24v/35v/48v), then if you have a general idea of how many watts you want (or can fit) on the RV roof, then that'll roughly give you your amps by dividing your desired watts by the battery voltage - for instance 800 watts divided by 24v battery system = 33.3amps, so you'd likely want a 30a or higher Victron unit. Then the first number in these model names is max solar panel input voltage into the charge controller (i.e. 100V, 150V - the higher the number, the more panels you can put in series - reducing gauge/cost of PV wire, but you can always compromise and run a series & parallel config to kind of get a medium voltage).
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186 Comments
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are these the new normal pricing? i found the same prices listed on other websites as well
I just read the manual on the Victron 150/45 smart controller, wow there's a lot of features!
Our community has rated this post as helpful. If you agree, why not thank Probedude
12/24/36/48 is pack voltage.
What I've seen is charge controllers are amp limited. So going to higher battery voltage will allow the controller to deliver higher watts vs lower battery pack voltage.
High PV input voltage allows you to series connect panels and not have to use high gauge wire between the panels and controller
Wow. 100/50 is on sale too ($185). I paid over $300.
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Edit: Nvm it was same price. I was looking at BlueSolar. Looks like they are on sale on multiple platforms like ebay, walmart
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