EcoFlow buyer’s guide · DELTA Pro
EcoFlow DELTA Pro Ultra (Inverter + 1 Battery): specs, runtime and who it’s for
6,144 Wh of storage and 6,900 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 DELTA Pro Ultra (Inverter + 1 Battery)
Prices and stock change often — check the current price on EcoFlow’s Philippine store.
Who it suits
Good for
- Overnight brownouts for a fan, Wi-Fi and lights
- Keeping a refrigerator running for some hours (check your fridge’s start-up surge)
- Short bursts of higher-power appliances such as a rice cooker or a small inverter aircon
- Growing your backup later — expandable to 30,720 Wh
Less suited to
- Long daily aircon use — a hybrid solar system suits that better.
Based on the published specs and the example appliance wattages below. Check your own appliances’ labels.
Specifications
| Battery capacity | 6,144 Wh |
|---|---|
| Battery chemistry | LFP |
| Rated cycle life | 3500 cycles to 80%+ SOH (0.5C/0.5C at 25C) |
| Continuous AC output | 6,900 W |
| Surge AC output | Not stated |
| X-Boost | Not stated |
| AC outlets | Not stated |
| USB-C maximum | 100 W |
| Solar input | Not stated |
| AC charging | AC input (charging/bypass) 200-240V~12.5A; marketing: 'top up two batteries in only 2 hours' at 8800W (combined charging) |
| Expandable to | 30,720 Wh — 'Maximum expandable capacity: 30 kWh (6144 Wh x 5)' using DELTA Pro Ultra Batteries. |
| UPS / EPS switchover | 20 ms |
| Weight | Not stated |
| Dimensions | Not stated |
Source: EcoFlow official specifications, checked October 27, 2026. Specs can change — confirm on EcoFlow’s page before buying.
Estimated brownout runtimes
Runtime ≈ 6,144 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 | 53 h 50 min |
| Essentials + phone charging + laptop | 187 W | 27 h 56 min |
| Essentials + refrigerator (compressor ~⅓ of the time) | 130 W | 40 h 4 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 | 3.6 days |
| LED bulb × 3 | 27 W | Yes | 8.1 days |
| Wi-Fi router | 10 W | Yes | 21.8 days |
| Phone charging × 2 | 30 W | Yes | 7.3 days |
| Laptop | 60 W | Yes | 3.6 days |
| LED TV | 80 W | Yes | 65 h 17 min |
| Refrigerator | 100 W | Yes | 52 h 13 min |
| Chest freezer | 100 W | Yes | 52 h 13 min |
| Desktop computer + monitor | 150 W | Yes | 34 h 49 min |
| Rice cooker (cooking) | 700 W | Yes | 7 h 28 min |
| Water pump | 370 W | Yes | 14 h 7 min |
| Aircon (inverter, small room) | 900 W | Yes | 5 h 48 min |
Fridges, freezers and aircons cycle on and off, so they usually last longer than the “runtime alone” figure suggests.
Compared with the nearest models
Looking for a discount? See how to get EcoFlow vouchers and promo codes in the Philippines.
Notes: This is a modular system. The inverter is 32.1 kg and 690 x 481 x 214 mm. Each battery is 50.7 kg, 660 x 455 x 204 mm, and 6144Wh. The prices are for 'Delta Pro Ultra Kit (1x Inverter + 1x Battery, 6kWh)'. The inverter alone is PHP 149,990 / 185,990. The battery is PHP 155,990 / 175,990 on the product page, but the collection page shows 'from PHP 151,990'. AC output is '230V 50Hz, 6900W total; 16A (x4)... 30A (x1) Max per port'. The outlet count and type are unclear, so they are left null. Surge is not stated. The combined solar maximum is not stated, so it is left null. Marked 'Sold out' with a pre-order note on 2026-10-27.