Grecell H1200
672 Wh · 1,200 W. Review the available facts and what still needs checking before deciding whether it fits.
Not confirmed: Surge (W) · Expandable to (Wh).
Review, specifications and verdict
Editorial analysis based on published specifications; we have not physically tested this product.
The Grecell H1200 is a 672 Wh LiFePO4 power station with 1,200 W of output, 400 W of solar input, a 10 ms UPS and a 78-minute wall charge, at 9.5 kg. On paper, it is the smallest AC station with a declared UPS in our US catalog. We have not run this unit ourselves: the data comes from the official Amazon listing, checked on September 26, 2026, plus our math. Grecell is a smaller brand than EcoFlow or Jackery, so check the support channels before you buy.
The H1200 packs a lot of declared features into a small box. It stores 672 Wh of LiFePO4 rated for 3,000 cycles and outputs 1,200 W, enough for a coffee maker or a small microwave. The 400 W solar input can refill it in about two peak sun hours, and the wall charger does it in 78 minutes. Its 10 ms UPS switchover is rare at this size. The drawbacks are the warranty, at 2 years, and the layout: only 2 AC outlets, so plan to use a power strip for small loads. It does not expand, and the listing gives no surge figure.
Pros
- Declared 10 ms UPS in a 9.5 kg body
- 400 W solar input and a 78-minute wall charge for 672 Wh
- LiFePO4 with 3,000 declared cycles
Cons
- 2-year warranty, short next to 5-year rivals
- Only 2 AC outlets and no expansion
- Best for
- Camping, van trips, and keeping a router or CPAP running through short outages
- Skip it if
- Long outages, heavy appliances or buyers who want a long warranty
Specifications
| Capacity (Wh) | 672 |
|---|---|
| AC output (W) | 1,200 |
| Chemistry | LiFePO4 |
| Cycles | 3,000 |
| Weight (kg) | 9.5 |
| AC outlets | 2 |
| USB-C ports | 2 |
| Max solar input (W) | 400 |
| Full wall charge (min) | 78 |
| UPS (ms) | 10 |
| Warranty (years) | 2 |
| Capacity (Wh) | 672 |
|---|---|
| AC output (W) | 1,200 |
| Chemistry | LiFePO4 |
| Cycles | 3,000 |
| Weight (kg) | 9.5 |
| AC outlets | 2 |
| USB-C ports | 2 |
| Max solar input (W) | 400 |
| Full wall charge (min) | 78 |
| UPS (ms) | 10 |
| Warranty (years) | 2 |
How long does the H1200 run your devices?
Plan on about 571 usable watt-hours. We apply 0.85 for inverter losses: 672 × 0.85 = 571 Wh. Runtime = usable Wh ÷ load in watts.
| Device (typical draw) | Math | Approximate runtime |
|---|---|---|
| 12V compressor cooler, 45 W | 571 ÷ 45 | 12.7 hours |
| Full-size fridge, 60 W average | 571 ÷ 60 | 9.5 hours |
| CPAP without humidifier, 40 W | 571 ÷ 40 | 14.3 hours (about 2 nights) |
| Wi-Fi router + modem, 15 W | 571 ÷ 15 | 38 hours |
| Laptop, 60 W | 571 ÷ 60 | 9.5 hours |
| Coffee maker, 1,000 W | 571 ÷ 1,000 | about 34 minutes |
The H1200 handles one night of essentials, not a day of home backup. Use the solar calculator with your own devices for a sharper number.
What will 1,200 W run?
One mid-size 120 V appliance at a time. 1,200 W equals 10 A. A coffee maker, a small microwave or an electric kettle on a low setting usually fits.
The listing does not publish a surge rating. Fridges and pumps pull a start-up spike, so check your appliance’s starting watts. A full-size space heater at 1,500 W is above the continuous limit.
How fast does it recharge?
From the wall, Grecell lists 78 minutes for a full charge. That implies an average input of about 517 W (672 ÷ 1.3 h), quick for this size and useful between rolling outages.
From solar, using capacity ÷ (panel watts × 0.75):
- 400 W of panels (maximum input): 672 ÷ 300 = 2.2 peak sun hours.
- 200 W panel: 672 ÷ 150 = 4.5 peak sun hours, about one summer day.
- 100 W panel: 672 ÷ 75 = 9 peak sun hours, about two days.
A single 200 W panel is the natural match. Our Jackery SolarSaga 200W review and best portable solar panels list options; check the connector before buying.
Is the 10 ms UPS useful at this size?
Yes, especially for a router, modem or CPAP. A 10 ms switchover is fast enough for most electronics to keep running when the grid drops.
The limit is capacity, not speed. A router plus modem at 15 W runs about 38 hours, so the H1200 makes a solid internet backup. A desktop PC at 200 W would run only about 2.9 hours (571 ÷ 200).
How portable is it?
At 9.5 kg (about 21 lb), one person can carry it with the folding handle. Energy density is 672 ÷ 9.5 = 70.7 Wh/kg, below the 90 Wh/kg bar in our review method.
That is typical for small LiFePO4 stations, which trade some weight for cycle life. At 3,000 cycles, it would last about 8 years at one full cycle per day (3,000 ÷ 365).
8.5/10 · WilderWatt scoreHow does it compare with the EcoFlow DELTA 3 and Anker SOLIX C300X DC?
The H1200 sits between a bigger EcoFlow and a much smaller DC-only Anker.
| Model | Capacity (Wh) | AC output (W) | Max solar input (W) | Weight (kg) | UPS (ms) | Warranty (years) | WilderWatt score | |
|---|---|---|---|---|---|---|---|---|
| 672 | 1,200 | 400 | 9.5 | 10 | 2 | 8.5 | ||
| 1,024 | 1,800 | 500 | 12.5 | — | 5 | 8.5 | ||
| 288 | — | — | 3.8 | — | 2 | 5 |
(affiliate link) · Data from the Amazon listing; offers may change.
- EcoFlow DELTA 3: 1,024 Wh, 1,800 W, 500 W solar, expansion to 5,000 Wh and a 5-year warranty. The catch is 12.5 kg and no declared UPS. See EcoFlow DELTA 3 vs Grecell H1200.
- Anker SOLIX C300X DC: 288 Wh at 3.8 kg. The catch is that it has no AC outlets, so it only suits USB and 12V devices.
Who should buy the Grecell H1200?
It suits people who want a light AC station with fast charging and a UPS.
Buy it if you:
- Camp or travel by van and run a cooler, lights and laptops. See our RV camping picks.
- Want to keep internet or a CPAP running through short outages.
- Pair it with one 200 W panel.
Skip it if you:
- Need more than a night of backup.
- Want a 5-year warranty or expansion.
Frequently asked questions
How long will the Grecell H1200 run a fridge?
A 60 W average fridge runs about 9.5 hours: 672 Wh × 0.85 ÷ 60 W. That covers an evening and part of a night.
How fast does the Grecell H1200 charge?
Grecell lists a full AC charge in 78 minutes. With 400 W of solar, it needs about 2.2 peak sun hours.
Does the Grecell H1200 have a UPS function?
Yes. Grecell states it switches to battery power in 10 ms, fast enough for most routers and computers.
How many outlets does the Grecell H1200 have?
The listing names 2 AC outlets (120V) and 2 USB-C ports, plus USB-A ports.
What warranty does the Grecell H1200 have?
Grecell lists a 2-year warranty, shorter than the 5 years offered by EcoFlow, Jackery and Anker on their larger stations.