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BLUETTI EP500Pro Runtime Calculator
Quick answer: the BLUETTI EP500Pro stores 5,100 Wh and delivers up to 3,000 W of continuous AC power. Under this site's planning assumptions (85% inverter efficiency, 10% reserve), a steady 100 W AC load runs for roughly 39.0 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Battery capacity5,100 Wh
AC output3,000 W
Surge outputunknown
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-27
Swipe table sideways
| Battery capacity | 5,100 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 3,000 W |
| Surge output | unknown |
| DC output | 120 W |
| USB-C output | 100 W |
| Solar input | 2,400 W |
| Weight | 83 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-27 |
Catalog notes (original English)
BLUETTI states on this page that the EP500Pro runs at 90% depth of discharge and 90% inverter efficiency, which is a useful anchor for runtime maths: usable energy is roughly 4130Wh rather than the full 5100Wh. The EP500Pro triples the EP500's AC input and doubles its solar ceiling. BLUETTI publishes no surge figure, so surge output stays unknown.
Runtime estimate
Formula starting points use each scenario’s default watts, duty cycle and output path, with 10% reserve or 15% for CPAP. Linked detail pages use the same inputs. Hours apply only if the device can run and start; they are not measured runtimes.
Swipe table sideways
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 23h 39m Output or startup compatibility is not established | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 3d 20h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 5d 11h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 14d 0h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1d 15h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
Runtime calculator
Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
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Power station model
Battery capacity (Wh): 5100 WhContinuous output rating (W): 3000 WSurge output rating (W): n/a
Estimated runtime2d 17h1d 16h – 3d 8hEstimated runtime: 2d 17h, 1d 16h – 3d 8h
Output path
Estimated runtime
Within the tracked power limits; compatibility still needs checking
This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
2d 17hEstimated runtime: 2d 17hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative1d 16h
Estimated2d 17h
Optimistic3d 8h
These are calculated sensitivity cases, not a statistical confidence interval. Conservative uses lower efficiency and battery health, more reserve/temperature loss and higher load; optimistic changes these assumptions in the opposite direction.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 5100 Wh
- Usable energy
- 3902 Wh
- 5100 Wh x 85% x 90% x 100% x 100%
- Running watts
- 60 W
- Average load
- 60 W
- Max surge
- n/a
- Fixed station overhead
- Unknown (not included)
- 60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
- Estimated runtime
- 2d 17h
- 3902 Wh / 60 W = 2d 17h
- Output path
- AC inverter
- Efficiency (%)
- 85
- Reserve kept unused (%)
- 10
- Battery health (%)
- 100
- Cold weather loss (%)
- 0
This link contains the numeric values you entered, but not custom load names.
Source-Backed Next Steps
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WattRunTime.com
WattRunTime estimate
Estimated runtime
2d 17hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy3902 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1d 16h
Estimated2d 17h
Optimistic3d 8h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy3902 Wh5100 Wh x 85% x 90% x 100% x 100%
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime2d 17h3902 Wh / 60 W = 2d 17h
Assumptions
- 5100 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 60 W average load from 1 load
- 100% battery health
- 0% temperature loss
- Fixed station overhead unknown; not included
Warnings
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
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Planning notes
- Capacity class: 5,100 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 3,000 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 2,400 W. Actual refill depends on panel voltage/current compatibility, sunlight, angle and charging losses.
Known data gaps
- Unverified or missing specifications remain visible. The confidence label describes the station record, not a tested runtime or approval for emergency use.
- Weight: 83 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: Surge output
Models: BLUETTI
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
BLUETTI EP500
5,120 Wh · AC output: 2,000 W · Confidence: Estimated
BLUETTI Elite 400
3,840 Wh · AC output: 2,600 W · Confidence: Estimated
BLUETTI Elite 320
3,200 Wh · AC output: 1,800 W · Confidence: Verified
Sources
- BLUETTI official EP500Pro specification table (Official; checked 2026-08-27)