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ZESE ZS28 Runtime Calculator
Quick answer: the ZESE ZS28 stores 4,121.8 Wh. Its continuous AC rating is not confirmed by a usable source, so this record keeps the field unknown rather than guessing — check the sources below before planning AC loads. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Battery capacity4,121.8 Wh
AC outputunknown
Surge outputunknown
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-27
Swipe table sideways
| Battery capacity | 4,121.8 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | unknown |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | unknown |
| Solar input | 1,700 W |
| Weight | 63 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-27 |
Catalog notes (original English)
ZESE's own page disagrees with itself on the inverter: the page title says 3600W while the heading and body copy say 3200W, so AC output stays unknown rather than being resolved by guesswork. At 63kg the ZS28 is an all-in-one home unit rather than a carryable station; plan it as fixed backup.
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% | 19h 7m Output or startup compatibility is not established | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 3d 2h Output or startup compatibility is not established | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 4d 10h Output or startup compatibility is not established | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 11d 8h Output or startup compatibility is not established | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1d 7h Output or startup compatibility is not established | 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): 4122 WhContinuous output rating (W): n/aSurge output rating (W): n/a
Estimated runtime2d 4h1d 8h – 2d 17hEstimated runtime: 2d 4h, 1d 8h – 2d 17h
Output path
Estimated runtime
Output or startup compatibility is not established
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 4hEstimated runtime: 2d 4hOutput or startup compatibility is not established
Conservative1d 8h
Estimated2d 4h
Optimistic2d 17h
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.
- Output or startup compatibility is not established
- The selected station output rating is unknown, so running-load compatibility is not verified.
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 4122 Wh
- Usable energy
- 3153 Wh
- 4122 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 4h
- 3153 Wh / 60 W = 2d 4h
- 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
Smallest matching record (8h)Jackery Explorer 600 Plus
WattRunTime.com
WattRunTime estimate
Estimated runtime
2d 4hOutput or startup compatibility is not establishedUsable energy3153 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1d 8h
Estimated2d 4h
Optimistic2d 17h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy3153 Wh4122 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 4h3153 Wh / 60 W = 2d 4h
Assumptions
- 4122 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.
- Output or startup compatibility is not established
- The selected station output rating is unknown, so running-load compatibility is not verified.
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Planning notes
- Capacity class: 4,121.8 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: unknown. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 1,700 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: 63 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: AC output, Surge output, DC output, USB-C output
Models: ZESE
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
ZESE ZS101
768 Wh · AC output: 600 W · Confidence: Estimated
ZESE ZS201
666 Wh · AC output: unknown · Confidence: Estimated
ZESE ZS102
530 Wh · AC output: 300 W · Confidence: Estimated
Sources
- ZESE official ZS28 specification table (Official; checked 2026-08-27)