EcoFlow buyer’s guide · RIVER 2
EcoFlow RIVER 2 Max: specs, runtime and who it’s for
512 Wh of storage and 500 W of continuous output , with LFP battery chemistry. Here’s what that means for brownouts in a Philippine home.
Spec-based guide — we haven’t tested this unit. Specs from EcoFlow, checked October 27, 2026.
EcoFlow RIVER 2 Max
Prices and stock change often — check the current price on EcoFlow’s Philippine store.
Who it suits
Good for
- Short brownouts for a fan, Wi-Fi and lights
- Keeping a refrigerator running for some hours (check your fridge’s start-up surge)
- Carrying around the house, to work or on trips
- Recharging from solar panels (up to 220 W of input)
Less suited to
- Aircons and heating appliances like kettles or irons
Based on the published specs and the example appliance wattages below. Check your own appliances’ labels.
Specifications
| Battery capacity | 512 Wh |
|---|---|
| Battery chemistry | LFP |
| Rated cycle life | 3000 cycles to 80%+ capacity |
| Continuous AC output | 500 W |
| Surge AC output | Not stated |
| X-Boost | 1,000 W |
| AC outlets | Not stated |
| USB-C maximum | 100 W |
| Solar input | 220 W (11-50V, 13A) |
| AC charging | AC input 220-240V, 660W max; 0-100% in 60 min (marketing text) |
| Expandable to | Not expandable / not stated |
| UPS / EPS switchover | Not stated |
| Weight | 6 kg |
| Dimensions | 270 x 260 x 196 mm |
Source: EcoFlow official specifications, checked October 27, 2026. Specs can change — confirm on EcoFlow’s page before buying.
Estimated brownout runtimes
Runtime ≈ 512 Wh × 0.85 ÷ load (W). The 0.85 factor allows for usable capacity and AC conversion losses, in line with the factor EcoFlow and other makers use. Real runtime varies.
| Scenario (example wattages) | Load | Estimated runtime |
|---|---|---|
| Essentials: fan, Wi-Fi router, three LED bulbs | 97 W | 4 h 29 min |
| Essentials + phone charging + laptop | 187 W | 2 h 20 min |
| Essentials + refrigerator (compressor ~⅓ of the time) | 130 W | 3 h 20 min |
What it can run on its own
Each appliance by itself, using example wattages. Motor appliances are checked against the surge rating at about 3× their running watts.
| Appliance | Example load | Can it run it? | Runtime alone |
|---|---|---|---|
| Electric fan | 60 W | Yes | 7 h 15 min |
| LED bulb × 3 | 27 W | Yes | 16 h 7 min |
| Wi-Fi router | 10 W | Yes | 43 h 31 min |
| Phone charging × 2 | 30 W | Yes | 14 h 30 min |
| Laptop | 60 W | Yes | 7 h 15 min |
| LED TV | 80 W | Yes | 5 h 26 min |
| Refrigerator | 100 W | Yes | 4 h 21 min |
| Chest freezer | 100 W | Yes | 4 h 21 min |
| Desktop computer + monitor | 150 W | Yes | 2 h 54 min |
| Rice cooker (cooking) | 700 W | No — output too low | — |
| Water pump | 370 W | Yes | 1 h 11 min |
| Aircon (inverter, small room) | 900 W | No — output too low | — |
Fridges, freezers and aircons cycle on and off, so they usually last longer than the “runtime alone” figure suggests.
Recharging with solar
It accepts up to 220 W of solar input (11-50V, 13A). With about 4.7 peak sun hours a day (the Philippine average) and allowing about 20% for losses, a full recharge from empty takes roughly:
- 0.7 sunny days with a 200 W panel
- 0.6 sunny days with 220 W of panels (its maximum input)
Estimate: capacity ÷ (panel watts ÷ 1.2 × peak sun hours). Cloudy weather, shading and panel angle reduce charging.
Compared with the nearest models
Looking for a discount? See how to get EcoFlow vouchers and promo codes in the Philippines.
Notes: The 500W rated output and 1000W X-Boost come from the store marketing text and the www.ecoflow.com/ph RIVER 2 footnote. They are not in the spec table. Surge is not stated. The RIVER 2 series page claims '<30ms EPS auto-switch' for the series, but the RIVER 2 Max page gives no model-specific figure, so it is left null. Weight is 'Approximately 6kg'. Prices are for the 'RIVER 2 Max' variant. A 'RIVER 2 Max 500' variant sells at PHP 19,790 / 29,580. Marked 'Sold out' on 2026-10-27.