Jackery Explorer 1500 Ultra Runtime Calculator
1,536 Wh LiFePO4 · 1,800 W AC (3,600 W surge) · runs a 34 W CPAP with humidifier about 24–29 h
Specs verified 10 Oct 2026 from jackery.com
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At a glance
What the Explorer 1500 Ultra runs
From its 1,800 W AC outlets, 4 of 6 listed devices last their usual hours, the microwave (1,000 w cooking power) and space heater do not.
- Runs it
Fridge 123 W
21–25 h
123 W running and a 800 W startup peak fit within the Explorer 1500 Ultra's 1,800 W continuous and 3,600 W surge ratings. Runtime at its 41 W average, as the compressor cycles.
- Runs briefly
Microwave (1,000 W cooking power) 1500 W
45–50 min
The Explorer 1500 Ultra runs it, but only for about 48 min at 1,500 W.
- Runs briefly
Space heater 1500 W
45–50 min
The Explorer 1500 Ultra runs it, but only for about 48 min at 1,500 W.
- Runs it
TV 120 W
8–9 h
120 W running and a 120 W startup peak fit within the Explorer 1500 Ultra's 1,800 W continuous and 3,600 W surge ratings.
- Runs it
CPAP with humidifier 34 W
24–29 h
34 W running and a 34 W startup peak fit within the Explorer 1500 Ultra's 1,800 W continuous and 3,600 W surge ratings.
- Runs it
Wi-Fi router 10 W
2.1–2.7 days
10 W running and a 10 W startup peak fit within the Explorer 1500 Ultra's 1,800 W continuous and 3,600 W surge ratings.
Spec sheet
Explorer 1500 Ultra verified specs
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Our take
What the Explorer 1500 Ultra is good at, and what to watch for
KiloHour take A good fit for construction sites and wet weather thanks to its IP65 case and 800W solar input, but it weighs 38.6 lb and cannot add battery packs.
The Explorer 1500 Ultra holds 1,536Wh of LiFePO4, the same capacity as the Explorer 1500 v2, but it is built for a different job. Its case is rated IP65 against dust and water with all lids closed, and Jackery describes it as drop resistant to one meter, with a removable metal base for cleaning. Jackery pitches it for dusty construction sites and heavy rain.
Output is rated at 1,800W continuous with a 3,600W surge peak, which Jackery says it can hold for 5 seconds. It can also sustain 2,000W for up to 15 minutes, and Jackery points to DIY tools and heavy-duty pumps as typical loads. Ports include three AC outlets, a 100W USB-C, a 30W USB-C, a USB-A and a 12V 10A outlet.
Charging is a strength. The manual lists 800W of solar across two 8020 ports, and Jackery quotes 1.5 hours on the wall, 2.5 hours from solar and about 3 hours from a vehicle alternator charger. In UPS mode the manual says it switches to stored power within 20 ms, though output in bypass mode is capped at 1,440W while grid power is present.
The trade-offs are weight and growth. At 38.6 lb (17.5 kg) it is heavier than the 31.97 lb Explorer 1500 v2, and Jackery's FAQ says it does not support an external battery pack. Cells are rated for 4,000 cycles to 70 percent capacity, and direct purchases carry a 3+2 year warranty.
Sources: jackery.com, jackery.com, cdn.shopify.com
Same brand
Other Jackery models
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| Explorer 1000 PlusSmaller | 1,264 Wh (−272 Wh) | 2,000 W | 800 W | 32 lb |
| Explorer 2000 v2Larger | 2,042 Wh (+506 Wh) | 2,200 W | 400 W | 39.5 lb |
| Explorer 1500 v2Same capacity | 1,536 Wh | 2,000 W | 400 W | 31.97 lb |
Alternatives
Other brands near 1,536 Wh
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| Goal Zero Yeti 1500 (2026)-2% capacity | 1,505 Wh (−31 Wh) | 2,000 W | 900 W | 52.75 lb |
FAQ
Explorer 1500 Ultra questions
Answers use the same published specs and labelled assumptions as the calculator.
How long will the Explorer 1500 Ultra last?
1,536 Wh stored, about 1,382 Wh of it usable at the typical estimate. At its full 1,800 W rating it empties in about 37–41 min.
What is the Explorer 1500 Ultra solar input?
Up to 800 W of panels. A single 200 W panel needs about 2.1 sunny days; panels at the full 800 W need about 2.6 peak-sun hours. Panels are assumed to deliver 75% of their rating.
Can the Explorer 1500 Ultra run a CPAP overnight?
Yes: 3 nights of 8 hours from a CPAP drawing 34 W with its heated humidifier and tube on (ResMed's measured figure).
How many watts can the Explorer 1500 Ultra power?
1,800 W continuous. Motor starts can briefly pull up to 3,600 W.
Does the Explorer 1500 Ultra work as a UPS?
Jackery lists a 20 ms switchover when wall power drops.