Voltsen Roam 1800 vs EcoFlow Delta 2 — Honest Comparison

The 1,000Wh class is the most-bought tier of portable power station in Australia in 2026. The Voltsen Roam 1800 (1,800W AC) and the EcoFlow Delta 2 (1,800W AC) are two main options at very different price points. Here's the deep comparison.

The headline numbers

Where the Roam 1800 wins

• Price. $200-500 cheaper at any given moment.
• Three AC outlets instead of two on the Australian Delta 2 SKU. Matters more than you think with multiple appliances on a camp table.
• Cold charging. -10°C means the unit works in alpine country and overnight winter trips. Delta 2 will not charge below 0°C.
• UPS switchover. Faster (under 20ms vs under 30ms) — keeps CPAP, modems, sensitive devices running through a mains drop.
• Wireless charging pad on top. Drop your phone on the lid, no cable.
• Local warranty. Send unit to Oakleigh, get repaired or replaced inside 7-10 days. With Delta 2 you ship to a depot overseas and wait weeks.

Where the Delta 2 wins

• Marginally more capacity — 1,024Wh vs 945Wh. About 8% more runtime.
• X-Boost — handles surge appliances (e.g. 2,200W briefly) where the Roam tops out at 1,800W.
• Larger solar input — 500W vs 350W. If you have a 500W panel, the Delta will refill faster.
• Longer warranty period — 5 years on paper. But: returns shipped overseas, so the customer experience is materially worse.
• App and ecosystem maturity — EcoFlow has more accessories and a polished app. Voltsen's app comes Q3 2026.

Real-world: which to buy

If you're a value buyer who runs typical caravan / camping / blackout loads (drill, fridge, lights, CPAP, kettle, laptop), the Roam 1800 is the right call. Same chemistry, more outlets, cold-charge, and you save the equivalent of a Sun 200 panel.

If you specifically need surge capability for high-draw tools beyond 1,800W, or a 500W solar panel array, lean Delta 2.

The warranty question

The Delta 2 has a 5-year warranty on paper. The Roam 1800 has 3 years. On paper that's a Delta 2 win. In practice, every Delta 2 customer who's had a warranty claim in Australia knows: you box the unit, ship internationally at your cost (or pay EcoFlow to arrange), and wait. Voltsen is a pre-paid label, ship to Oakleigh, repair-or-replace inside 10 days.

Three years of fast local service beats five years of slow overseas service for most buyers. If you disagree, the Delta 2 is the right unit for you.

Verdict

The Roam 1800 at $899 wins on value, outlets, cold charging, and local support. The Delta 2 wins on capacity, surge, solar input, and stated warranty length. Pick your priorities.

Got a use case we didn't cover? Email us and we'll add it to a future guide.