Photo from the manufacturer
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EcoFlow TRAIL 300 DC is a pocket-sized power station with no AC outlet: it only outputs DC, from the USB-C and USB-A ports and from an input that takes either a foldable panel or the car cable. The battery is lithium iron phosphate and fits in one hand.
The two USB-C ports reach a hundred forty watts each, enough for a laptop as well as a phone. There's no app, and no Bluetooth or Wi-Fi either: it's controlled from the buttons and the screen on the panel, which means it still works when the phone is dead, but also that it can't be checked from a distance.
It's for anyone hiking, cycling or paddling who wants to keep a phone, an action camera, a headlamp or a satellite communicator charged over several days running. It isn't a home reserve: anything that wants a wall outlet doesn't plug in here.
official manufacturer list price — on nominal capacity
| Parameter | Value | Source |
|---|---|---|
| Dimensions | 11.5 × 16.6 × 16.7 cm (4.5 × 6.5 × 6.6 in) | manufacturer website |
| Weight | 2.58 kg (5.7 lb) | manufacturer website |
| Nominal capacity | 0.288 kWh | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Fastest USB-C | 140 W | Declared by the brand |
| Maximum solar input | 110 W | Declared by the brand |
| Warranty | 3 anni | Declared by the brand |
| Ingress protection | IP30 | Declared by the brand |
| Mounting | Portable | Declared by the brand |
| Local control | None | Declared by the brand |
| Official list price | 179 € | Declared by the brand |
| Usable capacity | — | Not declared |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Expandable | — | Not declared |
| Maximum expanded capacity | — | Not declared |
| Continuous output | — | Not declared |
| Peak output | — | Not declared |
| Peak duration | — | Not declared |
| AC outlets | — | Not declared |
| Maximum charge power | — | Not declared |
| 0–80% charge time | — | Not declared |
| Backup power | — | Not declared |
| Switchover time | — | Not declared |
| Rated cycles | — | Not declared |
| Capacity at end of cycle life | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Guaranteed remaining capacity | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | Not declared |
| Minimum temperature | — | Not declared |
| Maximum temperature | — | Not declared |
| Cell heating | — | Not declared |
| Noise level | — | Not declared |
| Wheels and handle | — | Not declared |
| Works without internet | — | Not declared |
| Open protocols | — | Not declared |
| Home Assistant integration | — | Not declared |
| Where the data is hosted | — | Not declared |
| Remote updates | — | Not declared |
| App required for setup | — | Not declared |
| Declared standards | — | Not declared |
These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.
Chosen by the declared use tier and footprint, not by price: we don't publish prices.
