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Alison Ely avatar image
Alison Ely asked

Charge controller

We upgraded our inverter to 24v 3000w inverter with built in charge controller but the model failed. When it was installed 3 x 280w panels were added to the existing 4 x 100w panels. The new panels were connected directly to the inverter and the old panels were connected to a 100/50 Victron charge controller. We have now bought a Victron Multiplus 11 24v 3000 w inverter. Would a 150/ 35 charge controller be suitable to take the 3 x 280w panels?

charge controller compatibility
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kevgermany avatar image
kevgermany answered ·

Can't tell from the information given.

We need to know how they will be connected, Voc, Isc, temp coefficient of voltage, minimum temp where you will use the MPPT.

Best use the online calculator, it probably asks for more than I did. It will recommend suitable models. It's ok to go bigger, but usually not smaller than it recommends.

https://www.victronenergy.com/mppt-calculator

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