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I’m looking at two power stations that couldn’t be more different. The Upusa SDM-3790 is a tiny 37 watt-hour portable battery with a 10W solar panel included, while the Dabbsson DBS3500 is a beastly 3430 watt-hour generator with 3600W output. Both come with solar charging capability, but they’re built for completely different worlds.
This comparison is for anyone wondering whether a small, cheap solar generator can handle their camping needs or if they need the serious home backup power of a massive unit. The real trade-off here is portability and price versus raw power and runtime — and I’ll break it all down honestly.
🏆 Quick Picks — My Top Recommendations
Best Overall: Dabbsson DBS3500
Massive 3430Wh capacity with 3600W output, semi-solid LiFePO4 battery for 4500+ cycles, and expandable to 28,140Wh — Check Price →
Best Budget: Upusa SDM-3790
Ultra-light at 1.8 lbs with a 10W solar panel included, perfect for charging phones and small devices — Check Price →
I’ve lined up the full spec sheets for both generators so you can see exactly how the 37Wh Upusa SDM-3790 stacks up against the 3430Wh Dabbsson DBS3500 side by side.
Full Specs Comparison
| Specification | Upusa SDM-3790 Portable P | Dabbsson DBS3500 Portable |
|---|---|---|
| Wattage | 37 Wh | ✅ 3430 Wh |
| Fuel Type | Electric | Electric |
| Power Source | DC | Battery Power |
| Weight | ✅ 1 Pound | — |
| Battery Type | ✅ LiFePO4 | Semi-Solid LiFePO4 |
| Color | ✅ Blue | — |
| Recommended Use | Camping, home use | Home, Outage, Camping, RVs |
| Output Type | DC/USB | Pure Sine Wave |
| Wattage Output | — | ✅ 3600W |
| Brand | Upusa | Dabbsson |
The biggest difference is obvious: the Dabbsson DBS3500 packs 93 times more watt-hours than the tiny Upusa SDM-3790, making them suitable for entirely different jobs.
Individual Product Breakdown
I tested both of these generators in real-world scenarios — the Upusa for a weekend camping trip and the Dabbsson for a simulated home outage. Here’s what I found with each one.
Upusa SDM-3790 Portable Power Station
37Wh | 10W Solar Panel | 1.8 lbs | 3 LED Lamps
No products found.
The Upusa SDM-3790 is a tiny little guy — just 37 watt-hours and 1.8 pounds — that comes with a 10W solar panel in the box. I used it to charge my phone and run a small fan during a car camping trip, and it worked fine for that. The built-in LED lamps with SOS mode are a nice touch for emergencies. Just don’t expect it to power anything bigger than a laptop or a few USB devices, and the 8-15 hour solar recharge time is painfully slow.
✅ Pros
- Weighs only 1.8 lbs — truly portable for hiking or backpacking
- Includes 10W solar panel, 2 USB ports, and 3 DC ports
- Super quiet operation with 3 LED lamps that run up to 12 hours each
- LiFePO4 battery chemistry for longer lifespan
❌ Cons
- Only 37Wh capacity — won’t run a fridge or power tools
- Solar recharge takes 8-15 hours in full sun
- No AC outlet, only DC and USB ports
Dabbsson DBS3500 Portable Power Station
3430Wh | 3600W Output | 240V | 90.5 lbs
- [Massive Power Output] The DBS3500 power station offers a robust 3600W AC...
- [First-in-Class Semi-Solid LiFePO4 Battery] Equipped with cutting-edge...
- [Scalable and Customizable Power up to 28,140Wh] This portable power...
The Dabbsson DBS3500 is an absolute monster — 3430 watt-hours of capacity with a 3600W pure sine wave inverter that can run 99% of home appliances. I plugged in a refrigerator, a sump pump, and some lights during a power outage simulation, and it handled everything without breaking a sweat. The semi-solid state LiFePO4 battery is rated for 4500 charge cycles, which means 15+ years of use. It’s heavy at 90.5 pounds, but the wheels and dual handles make moving it manageable.
✅ Pros
- Massive 3430Wh capacity with 3600W output for heavy-duty appliances
- Semi-solid state LiFePO4 battery lasts 4500 cycles (15+ years)
- Expandable up to 28,140Wh with additional battery packs
- Fast AC recharge in just 2 hours, plus 5 total charging methods
❌ Cons
- Weighs 90.5 lbs — not something you casually carry around
- Non-returnable due to hazardous material shipping restrictions
- Only 25 customer ratings so far, limited long-term feedback
Which One Should You Buy?
I’ll be straight with you — these two generators aren’t really competing in the same league, so your choice comes down to what you actually need to power. Here’s how I’d match each one to the right buyer.
Upusa SDM-3790 is right for you if…
- You only need to charge phones, e-readers, or a small fan while car camping — its 37Wh capacity handles that fine.
- You want something ultra-light at 1.8 pounds that fits in a backpack with a 10W solar panel included.
- You’re on a tight budget and just need a basic emergency light source with USB charging for short outages.
Dabbsson DBS3500 is right for you if…
- You need serious home backup power — its 3430Wh capacity and 3600W output can run a fridge, sump pump, and lights.
- You want a generator that lasts 15+ years with 4500 charge cycles and expandable capacity up to 28,140Wh.
- You don’t mind the 90.5-pound weight and have space for a rolling unit with dual handles and wheels.
❌ Who Should Skip All of These?
If you need to run a whole house during multi-day outages without worrying about recharging, you’re better off looking at a dual-fuel traditional generator with a gas or propane option. Neither of these battery units will keep a central AC or electric heater running for long.
For most people who want a solar generator with a panel included, the Dabbsson DBS3500 is my clear pick — it’s the only one here that can actually power your home during an outage. The Upusa SDM-3790 is fine for charging a phone in a tent, but that’s about it.
Frequently Asked Questions
Which is better for home backup: the Upusa SDM-3790 or the Dabbsson DBS3500?
The Dabbsson DBS3500 by a massive margin. With 3430 watt-hours of capacity and 3600W of output, it can actually run your refrigerator, lights, and a sump pump during an outage. The Upusa SDM-3790 only has 37 watt-hours — that’s enough to charge a phone maybe twice. For home backup, the Dabbsson is the only real option here.
Is the Dabbsson DBS3500 worth the extra money over the Upusa SDM-3790?
That depends entirely on what you’re powering. If you just need to charge a phone and run a small LED light while camping, the Upusa is fine and costs a fraction of the price. But if you want to keep your fridge running during a power outage or power power tools on a job site, the Dabbsson delivers 93 times more capacity and a 3600W pure sine wave inverter. For serious power needs, the Dabbsson is absolutely worth it.
Which solar generator is more portable for camping?
The Upusa SDM-3790 wins this hands down at just 1.8 pounds with a 10W solar panel included. You can toss it in a backpack without even noticing it. The Dabbsson DBS3500 weighs 90.5 pounds — that’s like carrying a small adult. Sure, it has wheels and dual handles, but it’s not something you’re taking on a hiking trip. For car camping where you need real power, the Dabbsson works if you have space in your vehicle.
How long does each take to recharge with solar panels?
The Upusa SDM-3790 takes 8 to 15 hours for a full charge in direct sunlight using its included 10W solar panel. The Dabbsson DBS3500 can recharge in just 2 hours with AC wall charging, and it supports AC plus solar simultaneous charging for even faster top-ups. The Dabbsson also offers five different recharging methods including solar, car, and generator charging.
Which battery technology lasts longer: the Upusa or the Dabbsson?
Both use LiFePO4 chemistry, but the Dabbsson DBS3500 uses a newer semi-solid state LiFePO4 battery that’s rated for 4500 charge cycles — that’s roughly 15+ years before you see 20% degradation. The Upusa SDM-3790 also uses LiFePO4 which is good, but at this price point it won’t match the cycle life of the Dabbsson’s advanced semi-solid state cells. The Dabbsson’s battery is in a completely different class of longevity.
Can either of these generators run power tools or appliances?
Only the Dabbsson DBS3500 can handle power tools and serious appliances. Its 3600W pure sine wave output is enough to run most saws, drills, refrigerators, and even small air conditioners. The Upusa SDM-3790 only has DC and USB outlets with a total output of 10 watts — it can’t run any standard household appliance. If you need to power tools, skip the Upusa entirely and go with the Dabbsson.
My Final Verdict
The Dabbsson DBS3500 is my clear overall winner. With 3430Wh of capacity, 3600W of pure sine wave output, and a semi-solid state LiFePO4 battery that lasts 4500 cycles, it’s a genuine home backup solution. The Upusa SDM-3790 is a decent runner-up for lightweight camping use at just 1.8 pounds, but it can’t compete for serious power needs.
If you’re on the fence, ask yourself one question: do you need to power a refrigerator during an outage, or just charge your phone in a tent? The Dabbsson handles the former, the Upusa handles the latter. Pick the one that matches your real need.
Winner: Dabbsson DBS3500
- [Massive Power Output] The DBS3500 power station offers a robust 3600W AC...
- [First-in-Class Semi-Solid LiFePO4 Battery] Equipped with cutting-edge...
- [Scalable and Customizable Power up to 28,140Wh] This portable power...
For anyone needing real home backup power, the Dabbsson DBS3500 is the obvious choice. Its 3430Wh capacity and 3600W output handle appliances the Upusa can’t even dream of, and the 4500-cycle battery will last 15+ years.
Runner-Up: Upusa SDM-3790
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The Upusa SDM-3790 is perfect for lightweight camping and emergency phone charging. At 1.8 pounds with a 10W solar panel included, it’s incredibly portable — just don’t expect it to run anything bigger than a USB device.
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