Does smartsolar mppt support solar-power for inverter it is connected to battery directly

Hi, I wonder if the smartsolar mppt (75/15, 100/20) support the inverter with solarpower even if the inverter is connected directly to the battery. This would save the battery's aging a bit in terms of cycle life of a lifepo4 battery. I just ask because i heard that the load-output is always synced to battery-Voltage so that solar power is used first if there is any available, so maybe for the bat-connection it would be the same.

Thanks

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matt1309 commented · Feb 27 at 03:49 PM

Hi @keves

I believe it will just by the nature of how power is being drawn from the system. The inverter isnt really choosing whether the power is coming from battery or solar. It's just drawing power from the DC system as a whole.

So if solar is providing 100w and inverter is using 100w. The 100w of solar isn't going into the battery and then back out. It's going from solar to inverter.

That being said you will need the battery connected as a buffer. ie if solar goes down the inverter will need power to sustain itself.

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