frontpageProbedude posted Nov 08, 2023 03:42 PM
Item 1 of 2
Item 1 of 2
frontpageProbedude posted Nov 08, 2023 03:42 PM
Victron Energy SmartSolar MPPT 150/45 Charge Controller
& More + Free S&H$218
$363
39% offAmazon
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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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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!
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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
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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