Budget Brands Compared: OUPES vs VTOMAN vs GRECELL

Look, I get it. Not everyone has $700 to drop on a power station. Sometimes you just need something that works, doesn’t cost a fortune, and won’t catch fire in your garage.

Enter the budget brands: OUPES, VTOMAN, and GRECELL. These aren’t household names. You won’t find them at Costco. But they’re selling LiFePO4 power stations at prices that make Jackery look expensive.

I was skeptical. Cheap electronics usually mean cheap problems. But after testing these three and talking to people who’ve used them for a year or more, here’s what I found.

Who These Companies Are

OUPES is the relative newcomer, launched around 2021. They’re aggressive on pricing and specs—their Mega 1 delivers 2,000W from a 1kWh unit for $499. That’s insane value. Build quality is surprisingly decent.

VTOMAN focuses on the “jump starter plus power station” niche. Their Jump series can start your car AND charge your phone. Practical for people who want one device that does two jobs. Founded around 2020, they’ve carved out a loyal following.

GRECELL is the wildcard. They sell on Amazon at prices that seem too good to be true. And honestly? Sometimes they are. Quality varies between models, and customer service is hit-or-miss. But when you get a good unit, the value is undeniable.

The Lineup: What Your Money Buys

Model	Capacity	Output	Weight	Price	Battery	Charge Time
OUPES Mega 1	1024Wh	2000W	24.3 lbs	~$499	LiFePO4	36 min
OUPES Exodus 1200	992Wh	1200W	24 lbs	~$549	LiFePO4	2 hrs
OUPES Exodus 2400	2232Wh	2400W	45.6 lbs	~$999	LiFePO4	1.2 hrs to 80%
OUPES Mega 5	5040Wh	4000W	110 lbs	~$2,499	LiFePO4	2 hrs
VTOMAN Jump 600X	299Wh	600W	9.9 lbs	~$249	LiFePO4	1.7 hrs
VTOMAN Jump 1000	1408Wh	1000W	33.1 lbs	~$649	LiFePO4	5 hrs
VTOMAN Jump 1500	828Wh	1500W	30.9 lbs	~$699	LiFePO4	2 hrs
GRECELL 300W	230Wh	300W	6.6 lbs	~$149	LiFePO4	1.5 hrs
GRECELL 1000W	1000Wh	1000W	24 lbs	~$449	Li-ion	4 hrs
GRECELL 2200W	1126Wh	2200W	28.7 lbs	~$599	LiFePO4	1.25 hrs

Price: Who’s Actually Cheapest?

At 300Wh:

• GRECELL 300W: $149
• VTOMAN Jump 600X: $249

GRECELL wins by $100, but VTOMAN has more output and the jump starter feature.

At 1kWh:

• OUPES Mega 1: $499 (2,000W output)
• GRECELL 1000W: $449 (1,000W output, Li-ion)
• VTOMAN Jump 1000: $649 (1,408Wh, but slow charging)

OUPES gives you double the output of GRECELL for $50 more. And LiFePO4 vs Li-ion matters.

At 2kWh+:

• OUPES Exodus 2400: $999 for 2,232Wh
• OUPES Mega 5: $2,499 for 5,040Wh

OUPES dominates at higher capacities. Their Mega 5 at $2,499 for 5kWh is aggressive pricing.

Winner: OUPES — Best specs per dollar across most categories.

Build Quality: You Get What You Pay For

Let’s be honest: none of these feel like EcoFlow or Anker. But there’s a spectrum.

OUPES is the most polished of the three. Their units feel like they were designed by people who’ve seen a Jackery. Plastic isn’t as nice, handles aren’t as solid, but nothing feels like it’ll fall apart. The Mega 1 has survived drops and dust without issues.

VTOMAN is utilitarian. These are function-first devices. The Jump 600X is built to live in your truck. The plastic is thick, the handles are adequate, and the jump starter cables are actually decent quality. Not pretty, but durable.

GRECELL is the gamble. Their LiFePO4 units (300W, 2200W) are decent. Their Li-ion units (1000W) feel cheaper. Quality control is inconsistent—you might get a great unit, you might get one that arrives with a dead cell. Amazon reviews bear this out.

Winner: OUPES — Most consistent build quality, closest to mainstream brands.

Charging Speed: OUPES Goes Stupid Fast

OUPES:

• Mega 1: 36 minutes to 100% (2,200W charging)
• Exodus 2400: 1.2 hours to 80%

VTOMAN:

• Jump 600X: 1.7 hours to 100%
• Jump 1000: 5 hours to 100% (this is slow)

GRECELL:

• 300W: 1.5 hours to 100%
• 2200W: 1.25 hours to 100%

OUPES’s Mega 1 charges in 36 minutes. That’s faster than EcoFlow. That’s faster than anything. I don’t know how they’re doing it safely, but they are.

Winner: OUPES — By a lot.

Battery Tech: Mostly LiFePO4, With Exceptions

OUPES: LiFePO4 across all models. Good.

VTOMAN: LiFePO4 across all models. Good.

GRECELL: Mixed. The 300W and 2200W are LiFePO4. The 1000W is Li-ion (old chemistry, avoid).

If you’re buying GRECELL, stick to their LiFePO4 models. The Li-ion units aren’t worth the savings.

Winner: Tie between OUPES and VTOMAN — Both standardized on good chemistry.

Solar Compatibility: All Accept Standard Panels

Good news: all three brands use standard connectors:

• OUPES: DC7909 (adapter available for MC4)
• VTOMAN: DC5521 (adapter available for MC4)
• GRECELL: MC4 on most models

You’ll need adapters, but third-party panels work. None of these brands lock you into proprietary solar.

Solar input capacity:

• OUPES Mega 1: 960W max
• OUPES Exodus 2400: 960W max
• OUPES Mega 5: 2,000W max
• VTOMAN Jump 600X: 200W max
• GRECELL 2200W: 500W max

OUPES supports way more solar input than the others.

Winner: OUPES — Highest solar input, decent connector options.

Unique Features: VTOMAN’s Jump Starter

Here’s where VTOMAN stands out: their Jump series can start your car.

The Jump 600X can jump-start up to 8L gas or 6.5L diesel engines. It’s a power station AND a jump starter in one device. If you want to keep one thing in your truck that handles both dead phones and dead batteries, this is it.

No other budget brand offers this. Neither do any mainstream brands. It’s a legitimate differentiator.

Winner: VTOMAN — Unique feature that’s actually useful.

Warranty & Support: The Budget Reality

Here’s where budget brands show their budget nature:

• OUPES: 2 years. Support is slow (5-7 days) but eventually responsive.
• VTOMAN: 2 years. Support is moderate (3-5 days). Growing but still small company.
• GRECELL: 1-2 years, varies by seller. Support is variable—some Amazon sellers are good, others are non-existent.

Compare to EcoFlow (5 years, fast support) or Jackery (5 years on v2, responsive). The budget brands save money somewhere.

Winner: Tie — All three have similar limitations.

Best For Camping

OUPES Mega 1. At 24.3 lbs, it’s light enough to haul. 2,000W output runs anything you’d bring. Charges in 36 minutes. Hard to beat for $499.

Best For Truck/Toolbox

VTOMAN Jump 600X. The jump starter feature means one less thing to carry. 299Wh is enough for phones, tablets, and small tools. LiFePO4 won’t degrade in hot/cold.

Best For RV/Van Life

OUPES Exodus 2400. 2,232Wh capacity, 2,400W output, 960W solar input. The specs compete with EcoFlow at $300 less.

Best For “I Need Something That Works Now and Costs Nothing”

GRECELL 300W at $149. It’s not great, but it’s $149 for a LiFePO4 power station. If you’re on a strict budget and just need to charge phones and run a light, it works.

---

The Verdict

OUPES wins the budget battle.

Here’s the scorecard:

• Best specs per dollar: OUPES
• Fastest charging: OUPES (36 minutes!)
• Most consistent quality: OUPES
• Highest solar input: OUPES
• Best unique feature: VTOMAN (jump starter)
• Cheapest option: GRECELL

If you’re going budget, OUPES gives you the most for your money. Their Mega 1 at $499 with 2,000W output and 36-minute charging is genuinely impressive. The Exodus 2400 at $999 competes with mainstream brands.

VTOMAN gets an honorable mention for the jump starter feature. If that matters to you, the Jump 600X is a solid choice.

GRECELL is the gamble. Sometimes you win (good unit at incredible price), sometimes you lose (dead on arrival, no support). Only buy if you’re comfortable with the risk.

Budget doesn’t have to mean bad. OUPES proves that. Just don’t expect EcoFlow-level support when you need it.