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Growatt INFINITY 2000 PRO sizing guide
Second Growatt entry — EV-grade LFP cells (4,000+ cycles), expandable to 6,144 Wh, cold-weather battery self-heating to -22°F. Here's exactly what it runs, how long, and which outages it covers — computed, not marketed.
~1.5 h to full combining AC + up to 2,300 W solar · 51 lb · 15 outlets incl. TT-30 + 30A Anderson RV ports, AC, USB, 12V DC · expandable with add-on batteries.
What the INFINITY 2000 PRO runs — and for how long
| Appliance | Running | Runs it? | Approx. runtime |
|---|---|---|---|
| Refrigerator (modern) | 150 W (1,200 W surge) | yes | ~35 h |
| Chest Freezer | 100 W (1,000 W surge) | yes | ~53 h |
| CPAP Machine (no humidifier) | 40 W | yes | ~46 h |
| CPAP with Heated Humidifier | 60 W (95 W surge) | yes | ~38 h |
| Oxygen Concentrator | 350 W (600 W surge) | yes | ~5.3 h |
| Space Heater (1500 W) | 1,500 W | yes | ~1.2 h |
| Window AC (8,000 BTU) | 715 W (1,250 W surge) | yes | ~3.7 h |
| Window AC (12,000 BTU) | 1,100 W (1,800 W surge) | yes | ~2.4 h |
| Gas Furnace Blower (1/2 HP) | 800 W (2,350 W surge) | yes | ~4.6 h |
| Microwave (1000 W cooking) | 1,200 W | yes | ~1.5 h |
| Sump Pump (1/3 HP) | 800 W (1,500 W surge) | yes | ~12 h |
| Sump Pump (1/2 HP) | 1,050 W (2,150 W surge) | yes | ~8.8 h |
| Well Pump (1/2 HP) | 1,000 W (2,100 W surge) | yes | ~12 h |
Runtime uses each load's duty-weighted average draw against 90% of the rated capacity — conservative on purpose. Cyclic loads (fridges, pumps) run far longer than running-watts × capacity would suggest.
Outages the INFINITY 2000 PRO covers
Common questions
What can the Growatt INFINITY 2000 PRO run?
With 2,400 W of continuous output and a 3,400 W surge rating, the Growatt INFINITY 2000 PRO runs refrigerator (modern), chest freezer, cpap machine (no humidifier), cpap with heated humidifier, oxygen concentrator, space heater (1500 w), and more. Its 2,048 Wh battery sets how long: a fridge for roughly a day, a CPAP for several nights.
How long will the Growatt INFINITY 2000 PRO run a refrigerator?
A modern refrigerator averages about 53 W (it cycles ~35% of the time), so the Growatt INFINITY 2000 PRO's 2,048 Wh runs one for roughly 35 h before recharging.
Specs: Manufacturer published specifications (approximate; confirm on the current product page) (compiled 2026-10-05). Informational only — a computed sizing estimate from published appliance-wattage charts and manufacturer station specs. It is not an electrical guarantee. For hardwired or whole-home backup, transfer switches, or any permanent install, consult a licensed electrician.