
4–4 on comparable metrics
BLUETTI AC50B vs Goal Zero Yeti 500
AC50B leads on 4 of the 11 metrics both units publish; Yeti 500 leads on 4; 3 are level or not directly comparable. Capacity is within 11%, so this is a like-for-like decision rather than a size mismatch.


Pick this if
BLUETTI AC50B
- Continuous AC output: 700 W vs 500 W
- Weight: 14.8 lb vs 16.1 lb
- List price: $499 vs $500
- AC recharge time: 70 min vs 84 min
Buyers who measure value in watts and watt-hours, not in grams and app screens.
Pick this if
Goal Zero Yeti 500
- Capacity: 499 Wh vs 448 Wh
- Cost per watt-hour: $1.00 vs $1.11
- Watt-hours per pound: 31.0 Wh/lb vs 30.3 Wh/lb
- Rated cycles: 4,000 cycles vs 3,000 cycles
Buyers who value the ecosystem, the retail presence and a familiar outdoor brand.
Spec by spec
A green arrow marks the better figure on each row. Rows where only one unit publishes a number are shown without a winner rather than guessed.
| Metric | AC50B | Yeti 500 | What it means |
|---|---|---|---|
| Capacity | 448 Wh | 499 Wh | How much energy the unit stores. Sets how long everything else can run. |
| Continuous AC output | 700 W | 500 W | The largest load the inverter will run continuously, not counting surge. |
| Weight lower is better | 14.8 lb | 16.1 lb | The spec buyers most often regret ignoring. |
| List price lower is better | $499 | $500 | Vendor list price at the time of collection; street prices move. |
| Cost per watt-hour lower is better | $1.11 | $1.00 | Price divided by capacity. The fairest single value metric. |
| Watt-hours per pound | 30.3 Wh/lb | 31.0 Wh/lb | Capacity you get per pound carried. |
| Max solar input | — | 200 W | Caps how large an array is useful, and therefore off-grid recharge speed. |
| AC recharge time lower is better | 70 min | 84 min | Vendor-stated time to full from a wall outlet. |
| Rated cycles | 3,000 cycles | 4,000 cycles | Vendor claim for charge cycles before capacity degrades to 80%. |
| Max expandable capacity | 806 Wh | — | How far the system can grow with add-on batteries. |
| Warranty | 60 months | 60 months | Stated warranty length from the vendor listing. |
How each one ranks overall
BLUETTI AC50B
- #65 of 73 for Best value (Wh per dollar) ($1.11)
- #63 of 74 for Most portable (Wh per pound) (30.3 Wh/lb)
- #16 of 75 for Most inverter headroom (156 W/100Wh)
- #24 of 36 for Fastest AC recharge (384 W)
- #24 of 24 for Most expandable (806 Wh)
- #49 of 65 for Longest service life (1344 kWh)
- #52 of 72 for Most output per dollar (1.40 W/$)
- #63 of 75 for Best for home backup (43/100)
- #29 of 75 for Longest warranty (60 mo)
Goal Zero Yeti 500
- #60 of 73 for Best value (Wh per dollar) ($1.00)
- #61 of 74 for Most portable (Wh per pound) (31.0 Wh/lb)
- #59 of 75 for Most inverter headroom (100 W/100Wh)
- #26 of 36 for Fastest AC recharge (356 W)
- #50 of 55 for Highest solar input (200 W)
- #45 of 65 for Longest service life (1996 kWh)
- #63 of 72 for Most output per dollar (1.00 W/$)
- #69 of 75 for Best for home backup (35/100)
- #45 of 75 for Longest warranty (60 mo)
The brands behind them
BLUETTI
The value-and-power buyer who does not mind a heavy box
Best for: Buyers who measure value in watts and watt-hours, not in grams and app screens.
Not for: Buyers who need the lightest possible unit or the simplest possible interface.
Full BLUETTI profile →Goal Zero
The outdoor retailer shopper who wants a system they can see in person
Best for: Buyers who value the ecosystem, the retail presence and a familiar outdoor brand.
Not for: Spec-sheet shoppers optimising cost per watt-hour.
Full Goal Zero profile →Where these numbers come from. Every figure on this page is taken from BLUETTI’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: www.bluettipower.com/products/solar-generator-ac50b.
Vendor wording for each figure (7)
capacityWh: “448Wh capacity for extended battery life”acOutputW: “700W continuous power”weight: “6.7 kg/14.8 lbs”rechargeAcMinutes: “fully charge in 70 minutes”cycleLife: “3,000+ Cycles to 80% Original Capacity”maxExpandableWh: “an additional 806Wh of power”warrantyMonths: “industry-leading 5-year warranty”
Where these numbers come from. Every figure on this page is taken from Goal Zero’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: goalzero.com/products/yeti-500-portable-power-station-lfp-battery.
Vendor wording for each figure (7)
capacityWh: “Battery Pack Capacity: 499.2 Wh (25.6 V, 20 Ah)”acOutputW: “AC (Inverter)(pure sine wave): 500 W Continuous, 1000 W Surge, 115 V, 4.16 A”weight: “16.1 lbs (7.3kg)”solarInputW: “Solar (200 W Max): 2.8 hrs.”rechargeAcMinutes: “AC Fast Charge: 1.4 hrs”cycleLife: “Lifecycles*: 4000 (*To 80% of original capacity at 25 °C with a 0.5C charge and discharge)”warrantyMonths: “Warranty : 5 years”
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