Last updated: July 2, 2026.
The Oupes Mega 5 home backup station is now a shipping product—not a future crowdfunding concept. It packs a 5040Wh LiFePO4 battery with a 4000W continuous inverter (7000W surge) and scales with Oupes B5 expansion batteries.
Oupes has been in the market for a while with solar power stations from roughly 600W to 2400W. The Mega 5 targets homeowners who want a wheeled whole-room backup between EcoFlow Delta Pro and Bluetti AC500 class systems.
With the Mega 5 live, the brand competes on value: promotional pricing has dipped near $1,399–$1,699 on Oupes.com while MSRP remains higher. Compare it with the former’s Delta Pro and the latter’s AC500+B300 when you size home backup.
Oupes rates the Mega 5 platform up to 45.36kWh with eight B5 batteries (well beyond the original 10.08kWh two-pack ceiling quoted at launch). That is still below Delta Pro’s largest stacks but enough for overnight essentials plus a refrigerator circuit.
Buy direct at Oupes Mega 5 or browse
for bundles that include solar panels.Oupes Mega 5 Specs at a Glance
- 5040Wh LiFePO4 power station.
- Expandable up to 45.36kWh with B5 batteries.
- 4000W AC inverter with 7000W surge.
- Up to 2100W solar input (MPPT) and 1800W AC charging per current spec sheets.
- 15+ outlets including a 30A RV-style port on many bundles.
- App control and UPS pass-through for outage backup.
- Roll cart with collapsible handle (~112 lb unit weight).
We keep this post updated as Oupes refreshes firmware, pricing, and bundle SKUs.
Main Image Courtesy: Oupes Website — see also the original Oupes press release.
Robert DeWitt writes and tests off-grid power gear for Off Grid Power Boom. Based in Arizona, he uses portable power stations, solar panels, and battery systems regularly in extreme heat—focusing on practical runtime, charging speed, reliability, and real-world usability for camping, RV trips, and home backup.
Editorial focus: portable power stations & solar generators, solar panel setups, batteries/inverters, and off-grid preparedness.