Goal Zero Yeti 300
71BatteryRank score · Excellent
$349.95as of
Insufficient price history← CompareCheck price on Amazon 
Check price on Amazon
Goal Zero Yeti 300 vs Marbero M823
Decision readout
Better station
Goal Zero Yeti 300 leads by 45 points overall.
Better buy today
No price call today — the performance leader has no tracked street price yet.
Marbero M823
26BatteryRank score · Limited
$143.99as of
Insufficient price historyWhat changes the decision
- Home backup: Goal Zero Yeti 300 — more AC-delivered capacity and higher AC output
- Camping & RV: Marbero M823 — lighter and easier to carry
01 · Score evidence
Score breakdown
71
Goal Zero Yeti 300
Overall
26
Marbero M823
67
POWER
Goal Zero Yeti 300 +46
21
Battery-side usable capacity and how much you can run at once.
98
TRUST
Incomplete data
N/A
Owner reputation, safety record, warranty, and build durability.
91
CHARGING
Goal Zero Yeti 300 +86
5
Wall and solar recharge speed.
4
LIVABILITY
Marbero M823 +87
91
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.
Goal Zero Yeti 300
Rated (on the box)
296.96 Wh. Show source
claimed sourcehelp.goalzero.com ↗2026-07-27The marketing number — total cell capacity.
AC delivered (est.)
227 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.
Marbero M823
Rated (on the box)
237 Wh. Show source
claimed sourcemarbero.com ↗2026-07-27The marketing number — total cell capacity.
AC delivered (est.)
181 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 | Goal Zero Yeti 300 | Marbero M823 | Assumption |
|---|---|---|---|
| CPAP (humidifier off) | about 3.2 nights | about 2.5 nights | 9 W · |
| CPAP (heated humidifier on) | about 0.5 nights | about 0.4 nights | 56 W · |
| Refrigerator (full-size) | about 3.6 hours | about 2.9 hours | 180 W × 35% duty cycle · |
| Wi-Fi router + modem | about 13 hours | about 10 hours | 18 W · |
| Laptop (65W charger) | about 7.0 hours | about 5.6 hours | 65 W × 50% duty cycle · |
| Phone (one full charge) | about 11 full charges | about 9 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 | Goal Zero Yeti 300 | Marbero M823 |
|---|---|---|
| AC-delivered capacity | 227 Whest.. Show sourceestimated sourcehelp.goalzero.com ↗2026-07-27 | 181 Whest.. Show sourceestimated sourcemarbero.com ↗2026-07-27 |
| Continuous power output | 350 W. Show sourceclaimed sourcehelp.goalzero.com ↗ | 300 W. Show sourceclaimed sourcemarbero.com ↗ |
| Surge power output | 600 W. Show sourceclaimed sourcehelp.goalzero.com ↗ | 375 W. Show sourceclaimed sourcemarbero.com ↗ |
| Max solar input | 200 W. Show sourceclaimed sourcehelp.goalzero.com ↗ | — |
| AC charge time (0–100%) | — | 360 min. Show sourceclaimed sourcemarbero.com ↗ |
| Weight | 6.2 kg. Show sourceclaimed sourcehelp.goalzero.com ↗ | 2.09 kg. Show sourceclaimed sourcemarbero.com ↗ |
| Rated cycle life | 4,000 cycles. Show sourceclaimed sourcehelp.goalzero.com ↗ | — |
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.
05 · Tracked street price
Price & fair-price verdict
Goal Zero Yeti 300
$349.95as of Insufficient price history
Marbero M823
$143.99as of Insufficient price history
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- Goal Zero Yeti 300 #1 Small / carry in Best Portable Power Stations · #1 of 10 in Best 300 Wh Stations
Quick answers
- Is the Goal Zero Yeti 300 better than the Marbero M823?
- Goal Zero Yeti 300 leads by 45 points overall. No price call today — the performance leader has no tracked street price yet.
- Which has more usable capacity, the Goal Zero Yeti 300 or Marbero M823?
- The Goal Zero Yeti 300, by 46 Wh — 227 Wh versus 181 Wh, a 25% advantage. At a 60 W load that is roughly 0.8 extra hours before the battery is empty. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices, which is always less than the number on the box.
- Which has more AC output, the Goal Zero Yeti 300 or Marbero M823?
- The Goal Zero Yeti 300: 350 W versus 300 W continuous. That gap matters only if a load sits between the two numbers — below 300 W both run it, above 350 W neither does. Surge headroom follows the same order: 600 W against 375 W, and surge is what decides whether a compressor or pump actually starts.
- How does runtime compare between the Goal Zero Yeti 300 and Marbero M823?
- On the same sourced load — a refrigerator (full-size) — the Goal Zero Yeti 300 runs longer: 3.6 hours against 2.9. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
- Which is lighter, the Goal Zero Yeti 300 or Marbero M823?
- The Marbero M823, by 4.1 kg (2.1 kg versus 6.2 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 Goal Zero Yeti 300 for home backup; the Marbero M823 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 Goal Zero Yeti 300 →
- Full scorecard, specs & price for Marbero M823 →
- See more alternatives to Goal Zero Yeti 300 →
- See more alternatives to Marbero M823 →
- 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 →