Bluetti Elite 400 Review: A Massive Rolling Battery for Outage Backup, Travel Power, and Keeping Everything Charged
The Bluetti Elite 400 is a 3,840 Wh portable power station that rolls, and that second detail turns out to matter almost as much as the first. This is a nearly 4 kWh LiFePO4 battery with a 2,600 W pure sine wave inverter, built into a case with luggage wheels and a telescoping handle, and it is aimed squarely at the gap between the little 1,000 Wh boxes you carry with one hand and the 100-pound bricks you never actually move. That gap is exactly where a lot of real-world power lives: a computer you do not want to lose in an outage, a fridge to keep cold when the grid goes down, a campsite to run, and a permanent pile of batteries and devices that need charging.