Cybertake makes two portable camping air conditioners, and at a glance they look similar: compact 48V DC units that squeeze up to 8 hours of cooling out of a single kilowatt-hour. But the S1 Pro and the S2 Pro are aimed at different campers. Here's how they actually differ.
Quick Comparison
| Spec | Cybertake S1 Pro | Cybertake S2 Pro |
|---|---|---|
| Cooling | 4,100 BTU | 5,100 BTU |
| Heating | None (cooling only) | 6,100 BTU |
| Efficiency | 8 hrs on 1 kWh (sleep mode, ~100W/hr) | 8 hrs on 1 kWh (Eco+ mode) |
| Noise | 38 dB sleep mode | ~40 dB |
| Weight | 21.6 lbs | Heavier than S1 |
| Controls | Bluetooth app + top panel with LED display | Onboard controls, 3 fan speeds, 0–12 hr timer |
| Water resistance | — | IPX4 shell, waterproof buttons |
The Case for the S1 Pro
The S1 Pro is the lightweight specialist. At 21.6 lbs with an aluminum alloy frame and ergonomic handle, it's among the lightest units in its class — easy to carry from truck to tent, even on longer hauls. Its 38 dB sleep mode is exceptionally quiet, drawing only around 100W per hour for a full 8 hours of cooling on 1 kWh. You also get a 90° adjustable air vent, a dehumidifier and fan mode, a 12-hour timer, and Bluetooth app control. If you camp in warm weather and count every pound, this is your unit.
The Case for the S2 Pro
The S2 Pro is the four-season all-rounder. It cools harder — 5,100 BTU, enough for spaces up to 130 sq. ft. — and it's the only one of the pair that heats, delivering 6,100 BTU of warmth on cold nights. It operates in ambient temperatures from 41°F to 113°F, and the IPX4 water-resistant shell with waterproof silicone buttons makes it the better choice for exposed, wet, or dusty conditions. Three power inputs (100–240V wall, 12/24V vehicle, 48V DC) keep it running anywhere.
What They Share
Both units run on efficient 48V DC architecture, both stretch 1 kWh into roughly 8 hours of overnight comfort, and both pair beautifully with a portable power station — add solar panels and a quality battery system from our Victron Energy collection and you have indefinite off-grid climate control. On both units, the boost converter for DC battery operation is sold separately.
Bottom Line
Buy the S1 Pro if you're a warm-weather camper who prioritizes weight and quiet. Buy the S2 Pro if you camp year-round, need heat, or want the tougher weather-resistant build. Read our full S2 Pro review, or browse the whole Cybertake collection — everything ships from Upland, CA.