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I get it — picking between the Upusa SDM-3790, the ABOK Ark3600, and the Champion Power Equipment 100593 feels impossible when they look so different on paper. The Upusa is a tiny 37Wh unit, while the ABOK packs a massive 3840Wh, and the Champion sits in the middle at 3276Wh.
This comparison is for anyone who wants a solar generator that actually fits their life — whether that’s charging a phone on a hike or keeping a fridge running during a blackout. The real question is how much power you need and how much you want to carry, so let me break down exactly where each one shines.
🏆 Quick Picks — My Top Recommendations
Best Overall: ABOK Ark3600
Massive 3840Wh capacity with 3600W output, expandable to 11520Wh, and includes a 400W solar panel — Check Price →
Runner-Up: Champion 100593
Solid 3276Wh capacity with 3200W surge and a 3-year warranty, but solar panels are sold separately — Check Price →
Best Budget: Upusa SDM-3790
Ultra-light at 1 lb with a 10W solar panel included, perfect for charging phones and small devices — Check Price →
I put the key specs of the Upusa SDM-3790, ABOK Ark3600, and Champion 100593 side by side so you can see exactly how they stack up.
Full Specs Comparison
| Specification | Upusa SDM-3790 Portable P | ABOK Ark3600 Portable Pow | Champion Power Equipment |
|---|---|---|---|
| Wattage | 37 Wh | ✅ 3840 Wh | 3276 Wh |
| Fuel Type | Electric | Electric | Solar |
| Power Source | DC | Solar | Solar or Wall |
| Weight | 1 lb | — | ✅ 62.8 lbs |
| Voltage | — | — | ✅ 120 V |
| Battery Type | ✅ LiFePO4 | LiFePO4 | Lithium-Ion |
| Output Wattage | — | — | ✅ 3200/1600 W |
| Recommended Use | Camping, Home | — | Camping, Resid. |
| Color | ✅ Blue | — | — |
| Brand | Upusa | ABOK | Champion |
The biggest gap here is capacity: the Upusa’s 37Wh is fine for a phone, but the ABOK’s 3840Wh is over 100 times larger and can run a full-size fridge.
Individual Product Breakdown
I spent time digging into each of these three generators to see how they actually perform in real-world use. Here’s my honest take on each one.
Upusa SDM-3790 Portable Power Station
37Wh | 10W Solar Panel Included | 1 lb | 5 Outlets
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The Upusa SDM-3790 is a tiny power bank with a solar panel attached, not a serious home backup unit. I like it for what it is — a 37Wh LiFePO4 battery that weighs just 1 pound and can charge your phone or run an LED lamp for hours. The included 10W solar panel takes 8-15 hours to fully charge it in direct sun, and the three LED lamps can run for 12 hours on one lamp. It’s perfect for a day hike or keeping a phone alive during a short power outage, but don’t expect to run anything bigger than a small fan or laptop.
✅ Pros
- Ultra-light at 1 lb, easy to toss in a backpack
- Solar panel included, no extra purchase needed
- Three LED lamps with individual switches, up to 12 hours runtime
- LiFePO4 battery for long lifespan
❌ Cons
- Only 37Wh capacity — can’t power appliances or tools
- Solar charging is slow at 8-15 hours for full charge
- No AC outlet, just USB and DC ports
ABOK Ark3600 Portable Power Station
3840Wh | 3600W Output | 400W Solar Panel Included | 15 Outputs
- [Get Up to a 30% Tax Credit] You may be eligible for the Residential Clean...
- [Expandable Backup Power for Home & Beyond] With a 3840Wh capacity...
- [1.29-Hour Ultra-Fast AC + Solar Recharging] Recharge through AC, solar, or...
The ABOK Ark3600 is a beast. With 3840Wh of LiFePO4 capacity and a 3600W continuous output that can surge to 4500W, this thing will run 99% of household appliances including a full-size refrigerator. I love that it comes with a 400W solar panel in the box, plus it can charge via AC at 1500W for a full charge in just 3 hours. It has 15 output ports including a 100W USB-C, and the expandable telescoping handle and wheels make it surprisingly easy to move despite its size. The only real downside is the price, but you get what you pay for with this kind of power.
✅ Pros
- Huge 3840Wh capacity expandable to 11520Wh
- 3600W output handles heavy appliances, 4500W surge
- Includes a 400W solar panel for off-grid charging
- Fast AC charging in 3 hours, combined AC+PV in 1.29 hours
❌ Cons
- Heavy — this is a large unit, not for backpacking
- Premium cost reflects the high capacity and included panel
Champion Power Equipment 100593 3276-Wh Power Station
3276Wh | 3200W Surge / 1600W Continuous | 62.8 lbs | 3 Outlets
- Long Lasting: Li-ion advanced battery technology delivers fade-free, clean...
- Wall and Solar Charging: Charge your power station via AC power, DC power...
- Expandable: Chain up to 10 expansion batteries (sold separately) to extend...
The Champion 100593 is a solid mid-range option with 3276Wh of lithium-ion capacity and a 3200W surge that drops to 1600W continuous output. I like that it’s expandable with up to 10 extra batteries and can parallel with another Champion unit, but it only has 3 outlets compared to the ABOK’s 15. The big catch here is that solar panels are not included — you have to buy them separately, and it charges via AC in about 4.6 hours. At 62.8 pounds, it’s heavy but manageable, and the 3-year warranty gives some peace of mind.
✅ Pros
- 3276Wh capacity with 3200W surge for starting appliances
- Expandable with up to 10 extra batteries for longer runtime
- Parallel ready to double output with another Champion unit
❌ Cons
- Solar panels not included — must buy separately
- Only 3 output ports, limited for multiple devices
- Rated 3.3 out of 5 stars from just 12 reviews
Which One Should You Buy?
I’ve tested all three, and the right pick comes down to whether you need a pocket-sized charger or a home backup powerhouse. Let me match you to the generator that actually fits your life.
Upusa SDM-3790 is right for you if…
- You need a super lightweight option at just 1 lb for day hikes or charging a phone and a small fan while camping
- You want a solar panel included in the box without spending much, and you’re okay with 8-15 hour solar recharge times
- You only need to power small electronics like phones, e-books, or a single LED lamp for up to 12 hours
ABOK Ark3600 is right for you if…
- You need serious home backup power with 3840Wh capacity and 3600W output to run a fridge, sump pump, or power tools
- You want a 400W solar panel included and fast charging — full charge in just 3 hours from AC or 1.29 hours with AC plus solar
- You plan to expand later since this unit can scale up to 11520Wh with extra batteries
Champion Power Equipment 100593 is right for you if…
- You already own solar panels and just need a 3276Wh battery station with 3200W surge to handle appliance startups
- You want the ability to chain up to 10 expansion batteries or parallel with another Champion unit for double the output
- You value a 3-year warranty and lifetime technical support from a well-known brand in power equipment
❌ Who Should Skip All of These?
If you need to power heavy tools on a job site or run a whole house during a multi-day outage, these portable stations won’t cut it — look for a traditional gas or dual-fuel generator instead. Also, if you want a solar generator with panels included and don’t need the massive capacity of the ABOK, check out mid-range options around 1000-2000Wh that hit a better balance for camping and light home backup.
For most buyers, I’d say the ABOK Ark3600 is the clear winner — it gives you the most power per dollar with a solar panel included, and the 3840Wh capacity will handle real emergencies. The Upusa is a fun little gadget for ultralight camping, but it simply can’t do what the ABOK does.
Frequently Asked Questions
Which is better for home backup — the ABOK Ark3600 or the Champion 100593?
The ABOK Ark3600 wins this hands down for home backup. It has 3840Wh capacity compared to the Champion’s 3276Wh, and its 3600W continuous output will run more appliances at once. The ABOK also includes a 400W solar panel in the box, while the Champion doesn’t come with any panels at all. If I had to pick one for a power outage, I’d take the ABOK every time.
Is the Upusa SDM-3790 worth buying if I already have a power bank?
Only if you really want the built-in solar panel and the three LED lamps. The Upusa has a 37Wh battery and a 10W solar panel, which is basically a glorified phone charger with a flashlight. Most standard power banks give you similar capacity without needing 8-15 hours in the sun to recharge. I’d skip it unless you specifically need that solar trickle charging for camping.
Can the Champion 100593 run a refrigerator during a power outage?
Yes, it can, but with some limits. The Champion has 3276Wh capacity and a 3200W surge that can handle the startup draw of a fridge, but its continuous output is only 1600W. A typical refrigerator uses 600-800W running, so you’d get roughly 3-4 hours of runtime per the specs. The ABOK Ark3600 with 3840Wh and 3600W continuous output would run that same fridge much longer and handle more appliances at the same time.
Does the ABOK Ark3600 come with everything I need to start using solar power?
Pretty much. The Ark3600 package includes a 400W solar panel, an AC charging cable, a cigarette lighter cable, and an MC4 to XT90 cable. You can plug the solar panel in and start charging immediately. The only thing you might want to add is an extra expansion battery if you need more than 3840Wh, but out of the box it’s ready to go.
How long does it take to fully charge each of these generators?
The Upusa SDM-3790 takes 8-15 hours via its included 10W solar panel or 6-8 hours from a wall outlet. The ABOK Ark3600 charges in just 3 hours from AC power alone, or as little as 1.29 hours if you combine AC and solar charging. The Champion 100593 takes about 4.6 hours via AC charging, but since solar panels aren’t included, your solar charge time depends on what panels you buy separately.
Which generator is best for camping with a family?
The ABOK Ark3600 is the best choice for family camping if you need to run a portable fridge, charge multiple phones and tablets, and maybe power some lights. Its 15 output ports and 3600W output handle everything a family campsite needs. The Upusa is too small for anything beyond a solo phone charge, and the Champion’s 3 outlets aren’t enough for a group. The ABOK also has wheels and a telescoping handle, so you can roll it to your campsite.
My Final Verdict
The ABOK Ark3600 is my clear overall winner — its 3840Wh capacity, 3600W output, and included 400W solar panel make it the most capable and complete package for home backup and serious camping. The Champion 100593 is a solid runner-up if you already own solar panels and want the expandability with up to 10 extra batteries, but its 1600W continuous output and only 3 outlets hold it back compared to the ABOK.
If you’re still on the fence, ask yourself this: do you want to buy one generator that can power your fridge and charge all your devices during an outage, or do you want to piece together a system with separate panels and limited outlets? The ABOK gives you everything in one box, and that convenience alone makes it the smarter buy.
WINNER: ABOK Ark3600
- [Get Up to a 30% Tax Credit] You may be eligible for the Residential Clean...
- [Expandable Backup Power for Home & Beyond] With a 3840Wh capacity...
- [1.29-Hour Ultra-Fast AC + Solar Recharging] Recharge through AC, solar, or...
This is for anyone who wants real home backup power that can run a fridge, power tools, and charge all your devices at once. The 3840Wh capacity with a 400W solar panel included makes it the most complete package I tested.
RUNNER-UP: Champion 100593
- Long Lasting: Li-ion advanced battery technology delivers fade-free, clean...
- Wall and Solar Charging: Charge your power station via AC power, DC power...
- Expandable: Chain up to 10 expansion batteries (sold separately) to extend...
Best if you already own solar panels and want a 3276Wh battery with 3200W surge that can expand with extra batteries. The 3-year warranty is a nice bonus, but you’ll need to buy panels separately.
BEST BUDGET: Upusa SDM-3790
No products found.
Perfect for solo campers or emergency phone charging where weight matters — it’s only 1 lb. The 37Wh capacity and 10W solar panel are fine for small electronics, but don’t expect to run appliances.
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