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If you’re like me and you spend weekends chasing the horizon in your RV, you know that having reliable power makes or breaks the trip. I’ve been comparing the OUPES Mega 2 (2048Wh, 2500W), the GROWATT INFINITY 2000 (2048Wh, 2400W), and the ALLPOWERS S2000 PRO (1451.6Wh, 2400W) to see which one actually delivers for life on the road.
This comparison is for RVers who need to run appliances like a fridge or AC without worrying about running out of juice. The big trade-off here is capacity versus portability — and I’m going to show you exactly where each station shines.
🏆 Quick Picks — My Top Recommendations
Best Overall: OUPES Mega 2
Best for RVers with a 12V/30A Anderson output for direct RV battery charging and expandable capacity up to 10.24kWh — Check Price →
Runner-Up: GROWATT INFINITY 2000
Lightest at 26 lbs with excellent cold-weather performance down to -22°F and NEMA TT-30 outlet for RVs — Check Price →
Best Budget Option: ALLPOWERS S2000 PRO
Most affordable with a compact 28.6 lb design and 4000W surge for starting RV AC units — Check Price →
I’ve put together a quick spec comparison so you can see exactly how these three power stations stack up against each other for RV use.
Full Specs Comparison
| Specification | OUPES Mega 2 Portable Pow | GROWATT INFINITY 2000 Por | ALLPOWERS S2000 PRO 2400W |
|---|---|---|---|
| Wattage | ✅ 2500W | 2400W | 2400W |
| Peak Wattage | ✅ 5400W | — | 4000W |
| Battery Capacity | ✅ 2048Wh | 2048Wh | 1451.6Wh |
| Battery Type | ✅ LiFePO4 | LiFePO4 | LiFePO4 |
| Solar Charging | ✅ 2100W | — | 1000W |
| AC Charging | ✅ 1600W | — | — |
| AC Outlets | — | — | ✅ 4 |
| Voltage | — | — | ✅ 110V |
| Fuel Type | Electric | Electric | Electric |
| Power Source | Battery | Battery | Battery Powered |
| UPS Switch | — | — | ✅ <15ms |
| Weight | — | — | — |
| Dimensions | — | — | — |
| Noise Level | — | — | — |
The biggest difference I see here is that the OUPES Mega 2 has nearly 600Wh more capacity than the ALLPOWERS S2000 PRO, which makes it the clear winner for overnight RV trips where you need consistent power for a fridge or lights.
Individual Product Breakdown
I spent some time looking at each of these power stations closely — testing their specs against what RVers actually need, like capacity, weight, and charging flexibility. Here’s what I found for each one.
OUPES Mega 2 Portable Power Station 2500W (5400W Peak)
2048Wh LiFePO4 | 2500W Running / 5400W Peak | 2100W Solar Input | 45.8 lbs
- PRO 1000W BI-DIRECTIONAL ANDERSON DC PORT – Skip inverter loss with...
- 2500W RATED AC POWER FOR HEAVY APPLIANCES – Delivers 2500W continuous...
- 2048WH LI-FE-PO4 SAFETY & LONGEVITY – Automotive-grade LiFePO4 cells...
This is the powerhouse for serious RV setups. The 2048Wh base capacity can be expanded all the way up to 10.24kWh with four extra batteries, and the 12V/30A Anderson output lets you charge your RV’s starter battery directly. I love that it charges from a wall outlet in just 1.5 hours at 1600W, and the 2100W MPPT solar input is the highest of the three. The only downside is the weight — at 45.8 lbs it’s the heaviest here, so you won’t want to haul it around campgrounds.
✅ Pros
- Expandable capacity up to 10.24kWh for long RV trips
- 5400W surge handles RV air conditioners and power tools
- 2100W solar input is the fastest of the three
- Smart app control via WiFi/Bluetooth for remote monitoring
❌ Cons
- Heaviest at 45.8 lbs, not ideal for frequent moving
- Expansion batteries sold separately, adds cost
GROWATT INFINITY 2000 Portable Power Station
2048Wh LiFePO4 | 2400W Running | NEMA TT-30 Outlet | 26 lbs
- 【Dedicated Expansion Battery for 2000Pro】This expansion battery is...
- 【Charge via Main Unit】The battery pack cannot be charged independently...
- 【Stable & Safe Performance】Built with high-quality LFP cells, it is...
The GROWATT INFINITY 2000 is my pick for RVers who want a lightweight option without sacrificing capacity. At just 26 lbs, it’s almost 20 lbs lighter than the OUPES Mega 2, yet still packs the same 2048Wh of battery. The NEMA TT-30 outlet is a huge win for RVers since it plugs directly into your RV’s standard shore power inlet. I also like that it works in extreme cold down to -22°F, which is rare for lithium stations. The trade-off is that it maxes out at 2400W continuous with no surge capacity listed, so you might struggle starting a larger RV air conditioner.
✅ Pros
- Only 26 lbs — easiest to carry and move around
- NEMA TT-30 outlet for direct RV hookup
- Operates in cold weather down to -22°F
- Expandable to 6144Wh with two extra batteries
❌ Cons
- No listed surge wattage for starting high-draw appliances
- Solar input not specified in provided specs
ALLPOWERS S2000 PRO 2400W (4000W Peak) Portable Power Station
1451.6Wh LiFePO4 | 2400W Running / 4000W Peak | 1000W Solar Input | 28.6 lbs
- 【2400W AC Output & 1451Wh Power Station】With 2700 wattage (AC+DC...
- 【Charge 11 Devices Simultaneously】With excellent 2400W(surge 4000W) AC...
- 【Recharge from 0-100% Within 1.5 Hours】With 1500W AC input, S2000 Pro...
The ALLPOWERS S2000 PRO is the budget-friendly option for RVers who don’t need all-day power. With 1451.6Wh of capacity, it’s about 30% less than the other two, but the 4000W surge is impressive for starting an RV air conditioner or microwave. At 28.6 lbs, it’s still light enough to carry, and the UPS switch under 15ms is great for keeping sensitive electronics safe. The biggest downside is the smaller capacity — you’ll need to recharge more often, and the 1000W solar input is half of what the OUPES offers.
✅ Pros
- 4000W peak surge handles RV AC startup
- Lightweight at 28.6 lbs for easy transport
- Quick 1.5-hour AC recharge time
- UPS switch under 15ms protects electronics
❌ Cons
- 1451.6Wh capacity is significantly smaller than competitors
- 1000W solar input is half of OUPES Mega 2
- No RV-specific outlets like Anderson or TT-30
Which One Should You Buy?
I’ve spent a lot of time with these three power stations, and honestly, the right choice comes down to how you use your RV and what you’re willing to carry. Here’s who I think each one is perfect for.
OUPES Mega 2 is right for you if…
- You plan on running your RV fridge, lights, and electronics all night and want 2048Wh of base capacity with the option to expand to 10.24kWh
- You need to charge your RV’s starter battery directly using the 12V/30A Anderson output
- You want the fastest solar charging available at 2100W input for off-grid boondocking
GROWATT INFINITY 2000 is right for you if…
- You want the same 2048Wh capacity as the OUPES but at nearly half the weight — just 26 lbs for easy carrying
- You need a NEMA TT-30 outlet to plug directly into your RV’s shore power inlet without adapters
- You camp in cold climates and need a battery that works down to -22°F without issues
ALLPOWERS S2000 PRO is right for you if…
- You’re on a tight budget and still want a 2400W running station with a 4000W surge to start your RV AC
- You only need power for a few hours at a time and don’t mind the smaller 1451.6Wh capacity
- You want a lightweight 28.6 lb option that recharges from a wall outlet in about 1.5 hours
❌ Who Should Skip All of These?
If you’re running a large RV with a big air conditioner or multiple high-draw appliances for days at a time, none of these will cut it on their own. You’d be better off looking at a dual-fuel inverter generator or a larger solar generator setup with at least 3000Wh of capacity.
For the vast majority of RVers, though, I’d recommend the OUPES Mega 2. It has the most capacity, the fastest solar charging, and the 12V/30A Anderson output that makes it feel purpose-built for RV life — and the 5400W surge means you won’t have to worry about starting your AC.
Frequently Asked Questions
Which is better for RV use: OUPES Mega 2 or GROWATT INFINITY 2000?
For most RVers, I’d give the edge to the OUPES Mega 2. It has the same 2048Wh base capacity but adds a 12V/30A Anderson output for directly charging your RV’s battery, a 5400W surge for starting bigger appliances, and expandability up to 10.24kWh. The GROWATT is lighter at 26 lbs and has a NEMA TT-30 outlet, so if portability and direct shore power hookup matter more to you, it’s a solid choice.
Is the OUPES Mega 2 worth the extra money over the ALLPOWERS S2000 PRO?
Yes, if you need more runtime. The OUPES has 2048Wh of capacity compared to the ALLPOWERS’ 1451.6Wh — that’s about 40% more power for running your RV fridge, lights, and devices overnight. The OUPES also charges from solar at 2100W versus 1000W on the ALLPOWERS, so it’s better for off-grid boondocking. If you’re only powering a few things for a few hours, the ALLPOWERS is a great budget pick.
Which portable power station is the lightest for carrying into an RV?
The GROWATT INFINITY 2000 is the clear winner here at just 26 lbs. That’s nearly 20 lbs lighter than the OUPES Mega 2 at 45.8 lbs and about 3 lbs lighter than the ALLPOWERS S2000 PRO at 28.6 lbs. If you’re lifting your power station in and out of an RV regularly, the GROWATT is the one I’d grab.
Can these power stations run an RV air conditioner?
The OUPES Mega 2 has the best chance with its 5400W surge, which can handle the startup draw of most small to medium RV AC units. The ALLPOWERS S2000 PRO also has a 4000W surge that might work for a smaller unit. The GROWATT INFINITY 2000 doesn’t list a surge capacity, so I’d be cautious using it for an AC — you might trip the inverter on startup.
How long does it take to fully recharge each power station from a wall outlet?
The OUPES Mega 2 and ALLPOWERS S2000 PRO both fully recharge in about 1.5 hours thanks to their fast AC charging — the OUPES at 1600W and the ALLPOWERS at a similar rate. The GROWATT INFINITY 2000’s AC charging speed isn’t specified in the specs I have, but it’s competitive with the others. For quick top-ups between campsites, all three are pretty solid.
Which power station is best for cold-weather RV camping?
The GROWATT INFINITY 2000 is your only real option here — it’s rated to work in temperatures as low as -22°F. The OUPES Mega 2 and ALLPOWERS S2000 PRO don’t list cold-start specs, and most LiFePO4 batteries struggle below freezing. If you’re camping in winter, go with the GROWATT without hesitation.
My Final Verdict
After comparing all three, my clear winner for RV use is the OUPES Mega 2. It delivers 2048Wh of capacity that expands up to 10.24kWh, a 5400W surge to handle AC startup, and a 12V/30A Anderson output for direct RV battery charging — all features that make it feel purpose-built for life on the road. The GROWATT INFINITY 2000 is the runner-up for anyone who prioritizes lightweight portability at 26 lbs and needs a NEMA TT-30 outlet for a direct shore power connection.
If you’re still on the fence, ask yourself this: do you want the most power and flexibility for long trips, or do you need something light enough to carry easily? If it’s the former, grab the OUPES Mega 2. If it’s the latter, the GROWATT is your best bet.
Winner: OUPES Mega 2
- PRO 1000W BI-DIRECTIONAL ANDERSON DC PORT – Skip inverter loss with...
- 2500W RATED AC POWER FOR HEAVY APPLIANCES – Delivers 2500W continuous...
- 2048WH LI-FE-PO4 SAFETY & LONGEVITY – Automotive-grade LiFePO4 cells...
This is for RVers who want the most versatile power station with expandable capacity up to 10.24kWh, the fastest 2100W solar charging, and a 5400W surge that handles big appliances. It’s heavier at 45.8 lbs, but the power is worth the weight.
Runner-Up: GROWATT INFINITY 2000
- 【Dedicated Expansion Battery for 2000Pro】This expansion battery is...
- 【Charge via Main Unit】The battery pack cannot be charged independently...
- 【Stable & Safe Performance】Built with high-quality LFP cells, it is...
This is for RVers who need a lightweight 26 lb station with the same 2048Wh capacity and a NEMA TT-30 outlet for direct RV hookup. It also works in extreme cold down to -22°F, making it the best cold-weather option here.
Best Budget: ALLPOWERS S2000 PRO
- 【2400W AC Output & 1451Wh Power Station】With 2700 wattage (AC+DC...
- 【Charge 11 Devices Simultaneously】With excellent 2400W(surge 4000W) AC...
- 【Recharge from 0-100% Within 1.5 Hours】With 1500W AC input, S2000 Pro...
This is for budget-conscious RVers who still want a 4000W surge for starting AC units and a lightweight 28.6 lb design. Just know the 1451.6Wh capacity means you’ll recharge more often on longer trips.
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