Can I use Phoenix 1200w with 100ah Renogy battery?

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jake12909 asked May 1, '23

Can I use Phoenix 1200w with 100ah Renogy battery?

Hello.

I am installing a Phoenix 1200w, and had planned on using a Renogy 100ah lithium battery.

The Phoenix manual states minimum battery capacity of 150ah. This is obviously to cover the draw current of the Phoenix.

The battery states max continuous discharger of 100A.

Considering the continuous power of the inverter is stated to be 1000W, from my calculations the draw current should NOT exceed the 100A max discharge of the battery.. EXCEPT on peak power (stated at 2200 from the inverter)

Cont Power - 1000w/12/91 = 91.2A

Peak Power - 2200/12/91 = 201A

Could the battery handle the occasional peak power surge? (how often does the inverter hit peak power?)

I will rarely be running the inverter at max capacity so would that keep it well under 100A of continuous draw. Would this be okay?

If anyone could share some guidance/ point out anything I'm missing would be much appreciated

Thanks

Phoenix Inverter inverter current draw

2 |3000

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Answer 1 · 2023-05-03T03:23:25Z

tomthumb1801 answered · May 03, 2023 at 03:23 AM

I think you’d need to ask Renogy what the max draw over 100A and for how long before it trips the BMS.

If you keep your loads light, you’re probably fine, but it would be pushing the BMS to regularly be drawing 75% or more of the max draw, so 75A or more in your case. Which will create more heat and wear your battery more quickly.

What are you intending to power with the Phoenix 1200?

2 |3000

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