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Growatt HELIOS 3600 Runtime Calculator
Quick answer: the Growatt HELIOS 3600 stores 3,686.4 Wh and delivers up to 3,600 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 28.2 hours. Last source check: 2026-08-07. This is an estimate, not a guarantee.
Battery capacity3,686.4 Wh
AC output3,600 W
Surge outputunknown
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-07
Swipe table sideways
| Battery capacity | 3,686.4 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 3,600 W |
| Surge output | unknown |
| DC output | 396 W |
| USB-C output | 100 W |
| Solar input | 2,000 W |
| Weight | 45 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-07 |
Catalog notes (original English)
Surge output stays unknown because the checked official table publishes rated AC output per outlet group without a peak rating. The 3600W figure is the published total across the four 20A outlets; the same table lists a separate 2200W 240V outlet. DC output uses the listed 13.2V/30A Anderson port. Expansion batteries are sold separately and are not modeled here.
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% | 17h 5m Output or startup compatibility is not established | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 2d 18h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 3d 23h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 10d 3h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1d 4h 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): 3686 WhContinuous output rating (W): 3600 WSurge output rating (W): n/a
Estimated runtime1d 23h1d 5h – 2d 10hEstimated runtime: 1d 23h, 1d 5h – 2d 10h
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.
1d 23hEstimated runtime: 1d 23hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative1d 5h
Estimated1d 23h
Optimistic2d 10h
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
- 3686 Wh
- Usable energy
- 2820 Wh
- 3686 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
- 1d 23h
- 2820 Wh / 60 W = 1d 23h
- 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
1d 23hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy2820 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1d 5h
Estimated1d 23h
Optimistic2d 10h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy2820 Wh3686 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 runtime1d 23h2820 Wh / 60 W = 1d 23h
Assumptions
- 3686 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: 3,686.4 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 3,600 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 2,000 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: 45 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: Surge output
Models: Growatt
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
Growatt INFINITY 2000 PRO
2,048 Wh · AC output: 2,400 W · Confidence: Verified
Growatt INFINITY 1500
1,512 Wh · AC output: 1,800 W · Confidence: Verified
Sources
- Growatt HELIOS 3600 product specifications (Official; checked 2026-08-07)