What Size Battery Bank Do I Need for a 2000w Inverter?
Published 04/30/2022
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Question:
I was told for a 3000w inverter, a lead acid battery bank should have at least 800Ah, whereas a lithium battery bank would only require 300Ah. Is the correct? If so, would that be scalable for a 2000w inverter so that only 200Ah would be required for a lithium battery bank?
asked by: Jon K
Expert Reply:
The answers to both of your questions depends on how long you want to run the batteries for and at what output. The formula is hours needed to run x watts / battery voltage = battery inverter size. The Go Power Industrial Pure Sine Wave Inverter item # 34278156 will require a 200ah battery to run at full load for 20-25 minutes. To operate anything for an extended period requiring this size inverter, I suggest a battery bank of at least 400 AH minimum.
You would need four of the RV Lithium Batteries # GP99QR. A lithium battery bank would require half as many amp hours to run as a lead acid battery set up.
Product Page this Question was Asked From
Go Power Industrial Pure Sine Wave Inverter - GFCI - 2,000 Watt - 12V
- RV Power Inverter
- Pure Sine Wave Inverter
- Industrial Duty - Large Loads
- 12V
- 2000 Watts
- Inverter/Backup Power Functions
- Outlet
- Go Power
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