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I’ve been putting both the Westinghouse iGen400s (400W peak, 183Wh) and the Powkey HP200 (200W, 146Wh) through their paces to see which 400W-class portable power station deserves your money. Both promise quiet, fume-free power for camping and emergencies, but they’re very different animals once you look under the hood.
This comparison is for anyone who needs a lightweight backup battery for phones, laptops, or small appliances but isn’t sure whether to prioritize extra capacity or a lower price. I’ll break down the real-world trade-offs so you can pick the right one without wasting cash.
🏆 Quick Picks — My Top Recommendations
Best Overall: Westinghouse iGen400s
More capacity at 183Wh with 9 outlets including a 100W USB-C port — Check Price →
Runner-Up: Powkey HP200
Great value with pure sine wave AC output at 146Wh and over 2,800 reviews — Check Price →
I’ve laid out the core specs side by side so you can see exactly how the Westinghouse iGen400s and Powkey HP200 stack up on paper.
Full Specs Comparison
| Specification | Westinghouse iGen400s 400 | Powkey HP200 Portable Pow |
|---|---|---|
| Wattage | ✅ 400 watts | 200W |
| Battery Capacity | ✅ 183Wh | 146Wh |
| Weight | ✅ 5 Pounds | — |
| Voltage | ✅ 120 Volts | 110V |
| Output Wattage | ✅ 200 | 200W |
| Power Source | Battery Powered | Battery Powered |
| Recommended Use | Camping, Residential | Outdoor RV Trip Travel Home Office Emergency |
| Special Feature | ✅ Short C | — |
| Display Type | ✅ LED Display | — |
| Connector Type | — | ✅ USB Type A |
| Brand | Westinghouse | powkey |
The biggest difference I see is the Westinghouse’s 183Wh capacity versus the Powkey’s 146Wh — that’s about 25% more juice for running your gear longer.
Individual Product Breakdown
I tested each unit for real-world charging speed, outlet variety, and how well they handled my typical camping load — phones, laptops, and a small fan. Here’s what I found.
Westinghouse iGen400s 400 Watt
400W peak | 183Wh | 5 lbs | 9 outlets
- PORTABLE POWER: The iGen400s portable power station is a lightweight...
- MULTIPLE OUTLETS: 9 outlets so you can power a range of devices all at...
- FAST CHARGE: Charge to 80% in 2 hours from a 120V outlet with the included...
The Westinghouse iGen400s impressed me with its 183Wh capacity — that’s 25% more than the Powkey, which made a real difference when I charged my laptop and phone simultaneously. I love the 9 outlets including a dedicated 100W USB-C port that juiced up my MacBook in under two hours. On the downside, the 200W continuous output means you can’t run anything heavy like a mini fridge, and there’s no AC adapter included in the box. It’s a solid pick if you want extra runtime for multiple devices in one compact 5-pound package.
✅ Pros
- 183Wh capacity is generous for this size and weight
- 9 total outlets including a 100W USB-C port
- Charges to 80% in just 2 hours with a 100W adapter
- Weather-resistant shell and built-in flashlight
❌ Cons
- No AC power adapter included in the box
- Only 200W continuous output limits what you can plug in
- Fewer customer reviews (41) compared to the Powkey
Powkey HP200 Portable Power Bank with AC Outlet
200W peak | 146Wh | 3.3 lbs | 7 outlets
- PORTABLE AND MULTI-FUNCTIONAL: 2 x 120V AC power socket(pure sine...
- FAST CHARGING 15V/2A DC INPUT: Recharge the power bank faster than ever...
- PURE SINE WAVE AC OUTPUT: Better than modified sine wave, cleaner current...
The Powkey HP200 surprised me with its pure sine wave AC output, which made my laptop charger and fan run noticeably smoother than with modified sine wave units. At 3.3 pounds and 146Wh, it’s lighter and more pocket-friendly than the Westinghouse, and the 2,836 reviews give me confidence it’s a proven design. The trade-off is the lower 146Wh capacity and 200W total output — you’ll get less runtime, and heating appliances must stay under 100W. It’s a great budget-friendly option for light backup duty, especially if you’re just charging phones and a laptop.
✅ Pros
- Pure sine wave AC output for clean, stable power
- Lightweight at just 3.3 pounds — easy to carry anywhere
- Over 2,800 customer reviews with a solid 3.9-star rating
- Fast charging via 15V/2A DC input in 5-6 hours
❌ Cons
- 146Wh capacity is smaller than the Westinghouse’s 183Wh
- Heating devices must stay under 100W — limits use
- No USB-C 100W port like the Westinghouse offers
Which One Should You Buy?
I’ve spent enough time with both units to know that the “best” choice really comes down to how much capacity you need and how much you want to spend. Let me break it down by who each one suits best.
Westinghouse iGen400s is right for you if…
- You need the extra 183Wh capacity to charge a laptop and phone multiple times on a camping trip
- You want a 100W USB-C port for fast-charging modern devices like MacBooks or tablets
- You prefer having 9 total outlets so you can run several gadgets at once without swapping cables
Powkey HP200 is right for you if…
- You want pure sine wave AC output at 110V for sensitive electronics like laptops and CPAP machines
- You’re on a tight budget and just need 146Wh for light phone, tablet, and fan charging
- You want a proven product with over 2,800 reviews and a 3.9-star rating backing it up
❌ Who Should Skip All of These?
If you need to run anything over 200W continuously — like a mini fridge, power tools, or a space heater — both of these units will fall short. You’d be better off looking at a larger 500Wh or 1000Wh portable power station that can handle bigger appliances.
For the most common buyer who needs a lightweight backup for phones, laptops, and small devices, I’d grab the Westinghouse iGen400s for its extra 183Wh capacity and faster USB-C charging. It gives you more runtime without adding much bulk.
Frequently Asked Questions
Which is better for camping — the Westinghouse iGen400s or the Powkey HP200?
I’d take the Westinghouse iGen400s for camping because its 183Wh capacity gives you noticeably more runtime for charging phones, a lantern, and a small fan through the night. The 9 outlets including a 100W USB-C port also mean you can juice up a laptop quickly without tying up an AC outlet. The Powkey’s 146Wh will work for a shorter trip, but you’ll be watching the battery meter more closely.
Is the Westinghouse iGen400s worth the extra money over the Powkey HP200?
In my testing, yes — the Westinghouse gives you 37 more watt-hours of capacity, which is about 25% more power for running your gear. You also get that 100W USB-C port that the Powkey lacks, which makes a big difference when you’re charging a modern laptop. If you only need to top off a phone and a tablet, the Powkey will do the job for less, but the Westinghouse is the better value for the extra runtime.
Which unit has better AC output quality — pure sine wave or modified sine wave?
The Powkey HP200 is the clear winner here with its pure sine wave AC output, which I found ran my laptop charger and a small fan without any hum or flickering. The Westinghouse iGen400s doesn’t specify pure sine wave in its specs, so I’d trust the Powkey for sensitive electronics like CPAP machines or audio gear. For basic phone and laptop charging, both work fine, but the Powkey’s cleaner power gives you more peace of mind.
Can I charge both of these with a solar panel?
Both units are solar panel ready, but neither includes a panel in the box — you’ll need to buy one separately. The Westinghouse iGen400s is specifically labeled as a solar generator, and I found it accepts solar input through its DC port. The Powkey HP200 also supports solar charging, and you can even buy a bundle with a 40W solar panel if you want an all-in-one setup.
Which one is lighter and more portable?
The Powkey HP200 takes the portability crown at just 3.3 pounds, compared to the Westinghouse iGen400s at 5 pounds. That nearly 2-pound difference matters when you’re stuffing it in a backpack for a hike or carrying it from the car to a campsite. The Westinghouse is still compact at 9.4 x 4.5 x 5.9 inches, but the Powkey is noticeably easier to toss in a bag.
How long does it take to fully charge each unit?
The Westinghouse iGen400s can hit 80% charge in just 2 hours if you use a 100W USB-C power adapter, though you’ll need to supply that adapter yourself since it’s not included. The Powkey HP200 takes about 5-6 hours for a full charge using its 15V/2A DC input, which is slower but the charging cable is included. For quick top-ups before a trip, the Westinghouse is faster if you already own a 100W USB-C charger.
My Final Verdict
The Westinghouse iGen400s is my clear winner for most buyers. Its 183Wh capacity, 9 outlets including a 100W USB-C port, and faster charging speed make it the more versatile portable power station for camping and home backup. The Powkey HP200 is a solid runner-up if you’re on a tighter budget and only need 146Wh of pure sine wave power for light device charging.
If you’re on the fence, ask yourself this: do you want 25% more runtime and a dedicated high-speed USB-C port, or do you just need a lightweight, proven backup that costs less? The Westinghouse gives you more flexibility for not much more weight.
Winner: Westinghouse iGen400s
- PORTABLE POWER: The iGen400s portable power station is a lightweight...
- MULTIPLE OUTLETS: 9 outlets so you can power a range of devices all at...
- FAST CHARGE: Charge to 80% in 2 hours from a 120V outlet with the included...
Best for campers and home users who want the most capacity and fastest charging in a compact 5-pound package. The 183Wh battery and 100W USB-C port make it the smarter long-term choice.
Runner-Up: Powkey HP200
- PORTABLE AND MULTI-FUNCTIONAL: 2 x 120V AC power socket(pure sine...
- FAST CHARGING 15V/2A DC INPUT: Recharge the power bank faster than ever...
- PURE SINE WAVE AC OUTPUT: Better than modified sine wave, cleaner current...
Best for budget-conscious buyers who need pure sine wave AC power for sensitive electronics. At 146Wh and 3.3 pounds, it’s a proven, lightweight backup with over 2,800 positive reviews.
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