Anker SOLIX S2000
41BatteryRank score · Limited
Power stationsSections
← CompareCheck price on Amazon 
Check price on Amazon
Anker SOLIX S2000 vs Oupes Mega 2 Pro
Decision readout
Better station
Oupes Mega 2 Pro leads by 28 points overall.
Oupes Mega 2 Pro
69BatteryRank score · Balanced
Affiliate links on this comparison may earn us a commission if you buy, at no extra cost to you.
What changes the decision
- Home backup: Oupes Mega 2 Pro — more AC-delivered capacity and higher AC output
- Camping & RV: Anker SOLIX S2000 — lighter and easier to carry
By the BatteryRank Engineering Team
01 · Score evidence
Score breakdown
41
Anker SOLIX S2000
Overall
69
Oupes Mega 2 Pro
24
POWER
Oupes Mega 2 Pro +48
72
Battery-side usable capacity and how much you can run at once.
94
TRUST
Anker SOLIX S2000 +10
84
Owner reputation, safety record, warranty, and build durability.
10
CHARGING
Oupes Mega 2 Pro +54
64
Wall and solar recharge speed.
94
LIVABILITY
Anker SOLIX S2000 +57
37
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
02 · Usable energy
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
Anker SOLIX S2000
Rated (on the box)
2,010 Wh. Show source
claimed sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-stationThe marketing number — total cell capacity.
AC delivered (est.)
1,709 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
Oupes Mega 2 Pro
Rated (on the box)
2,048 Wh. Show source
claimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048whThe marketing number — total cell capacity.
AC delivered (est.)
1,741 Wh. Show source
estimated sourceestimate = battery-side usable capacity × 85% inverter efficiencyWhat reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
03 · Same assumptions
Same-device runtime
| Device | Anker SOLIX S2000 | Oupes Mega 2 Pro | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 23.7 nights | about 24.2 nights | 9 W · |
| CPAP (heated humidifier on) | about 3.8 nights | about 3.9 nights | 56 W · |
| Refrigerator (full-size) | about 27 hours | about 28 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 95 hours | about 97 hours | 18 W · |
| Laptop (65W charger) | about 53 hours | about 54 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 85 full charges | about 87 full charges | 20 W · |
One device at a time; estimates use each station's usable AC energy. Build your own load →
04 · Sourced hardware
Key specs, side by side
| Spec | Anker SOLIX S2000 | Oupes Mega 2 Pro |
|---|---|---|
| AC-delivered capacity | 1,709 Whest.. Show sourceestimated sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-station | 1,741 Whest.. Show sourceestimated sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
| Continuous power output | 1,500 W. Show sourceclaimed sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-station | 2,500 W. Show sourceclaimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
| Surge power output | 3,000 W. Show sourceclaimed sourceankersolix.com2026-10-02https://www.ankersolix.com/products/s2000-portable-power-station | 3,800 W. Show sourceclaimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
| Max solar input | 400 W. Show sourceclaimed sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-station | 1,000 W. Show sourceclaimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
| AC charge time (0–100%) | 138 min. Show sourceclaimed sourceankersolix.com2026-10-02https://www.ankersolix.com/products/s2000-portable-power-station | — |
| Weight | 16.2 kg. Show sourceclaimed sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-station | 22.1 kg. Show sourceclaimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
| Rated cycle life | 6,000 cycles. Show sourceclaimed sourceankersolix.com2026-07-27https://www.ankersolix.com/products/s2000-portable-power-station | 4,000 cycles. Show sourceclaimed sourceoupes.com2026-07-27https://oupes.com/products/oupes-mega-2-pro-home-backup-portable-power-station-2500w-2048wh |
Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
Where these rank
- Anker SOLIX S2000 #7 of 10 in Longest-Cycle-Life Power Stations
- Oupes Mega 2 Pro #3 Large (2 kWh class) in Best Portable Power Stations · #3 of 10 in Best 2,000 Wh Stations
Quick answers
- Is the Anker SOLIX S2000 better than the Oupes Mega 2 Pro?
- Oupes Mega 2 Pro leads by 28 points overall.
- Which has more usable capacity, the Anker SOLIX S2000 or Oupes Mega 2 Pro?
- Neither, in any way you would notice: 1,709 Wh against 1,741 Wh is a 1.9% gap, which is smaller than the swing you get from running the same load on a cold morning. Treat them as the same size and decide on output, weight, or today's price instead. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices.
- Which has more AC output, the Anker SOLIX S2000 or Oupes Mega 2 Pro?
- The Oupes Mega 2 Pro: 1,500 W versus 2,500 W continuous. That gap matters only if a load sits between the two numbers — below 1,500 W both run it, above 2,500 W neither does. Surge headroom follows the same order: 3,000 W against 3,800 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Anker SOLIX S2000 and Oupes Mega 2 Pro?
- They run within 1.9% of each other on the same load — about 27.1 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
- Which is lighter, the Anker SOLIX S2000 or Oupes Mega 2 Pro?
- The Anker SOLIX S2000, by 5.9 kg (16.2 kg versus 22.1 kg). Both weights are manufacturer figures for the bare unit; cables and a solar panel add to whatever you actually carry.
- Which model should I buy for my use case?
- On the sub-scores that describe each use case: the Oupes Mega 2 Pro for home backup; the Anker SOLIX S2000 for camping & rv. They split, so the honest answer depends on which of those you are actually buying for.
Keep deciding
- Full scorecard, specs & price for Anker SOLIX S2000 →
- Full scorecard, specs & price for Oupes Mega 2 Pro →
- See more alternatives to Anker SOLIX S2000 →
- See more alternatives to Oupes Mega 2 Pro →
- What size do you need? →
- Browse all rankings →
- Check device runtime evidence →
- Compare outage and trip load plans →
- Browse complete power kits →
- Capacity vs output explained →
- Battery cycle-life thresholds →
- UPS behavior explained →