The Ark3600 is the strongest fit here because it combines the capacity to run a rooftop air conditioner for hours with the TT-30 outlet that an RV cord plugs into. It stores 3,840 watt-hours and outputs 3,600 watts with a 7,200 watt peak, which is more than twice the 3,000 watt or so that a 13,500 BTU compressor can ask for at start. A 13,500 BTU unit averaging about 1,300 watts gives roughly 2.5 hours of cooling at full duty from a full pack, and longer when the thermostat cycles.
Charging is the other strength. With 3,500 watts of combined AC and solar input, the maker says it reaches 80 percent in about 1.1 hours, and a full charge takes about 2.3 hours with 2,000 watts of solar. This is the 3x200W panel bundle, so 600 watts of panels are included in this listing. Compared with the Jackery HomePower 3600 Plus, it has more capacity at 3,840 versus 3,584 Wh, but the Jackery has a stronger brand and a longer cell rating. Compared with the SolarPlay 3600W, it offers a TT-30 port and a UL 2743 listing.
The pack is LiFePO4 with expansion to 11,520 watt-hours, and the app can schedule off-peak charging. The brand is newer than Jackery or EcoFlow, with five years of support. Mount it securely, keep the vents clear, and use the TT-30 port with a proper RV adapter to avoid undersized cord runs.
What works
- TT-30 port connects an RV shore cord directly
- Seven thousand two hundred watt peak starts rooftop compressors
- Quoted 1.1 hours to 80 percent with AC and solar combined
- Expands to 11,520 Wh for multi-night cooling
Watch out for
- Newer brand than Jackery or EcoFlow, with less service history
- Roughly 2.5 hours of cooling at full duty from one pack
- Station and panels ship separately per the listing
Spec sheet
- Capacity
- 3,840 Wh LiFePO4, expandable to 11,520 Wh
- AC output
- 3,600 W rated, 7,200 W peak
- RV outlet
- TT-30 30 A
- Fast charge
- 0 to 80% in 1.1 h at 3,500 W
- Solar kit
- Three 200 W panels
- Safety
- UL 2743 listed
- Support
- 5 years






