Core concept
A battery module is not the same as a complete installed system.
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Modular home backup systems need configuration-specific planning
A modular home battery can expand across batteries, inverters, solar inputs, and transfer equipment. Use the installed configuration, not a headline maximum, before estimating runtime.
Planning impact
Capacity, output, and solar input can change with module and inverter count.
What to verify
Whole-home backup needs manufacturer and qualified-installer guidance.
Planning capacity comes from the installed battery-module count; runtime still depends on usable energy, the backed-up loads, and the output path.
Modular home backup systems need configuration-specific planning
A modular home battery can expand across batteries, inverters, solar inputs, and transfer equipment. Use the installed configuration, not a headline maximum, before estimating runtime.
A system range is not your capacity
A product family may advertise a broad expandable range. Start with the exact batteries and inverters in the installed system instead of choosing the highest published number.
Output has installation context
Whole-home output can depend on transfer equipment, inverter count, circuit design, and time limits. Check the official configuration documentation before deciding which loads can run together.
Installation is part of the product
Electrical interconnection, solar wiring, local code, and backup priorities require manufacturer guidance and a qualified installer. This site does not replace that review.
Source-backed modular home backup systems
These records keep expandable capacity and configuration-dependent output visible instead of forcing them into the portable finder.
Whole-home electrical installation is configuration-specific. Follow the system manufacturer's documentation and consult a qualified installer before relying on any backup plan.
Swipe table sideways
| System | Battery capacity | Output range | PV input range | Source | Finder status |
|---|---|---|---|---|---|
| Anker SOLIX E10 | 6,144 Wh per battery module; 6,144-90,000 Wh system range. | Rated 7,680-22,800 W; turbo 10,000-30,000 W. | 9,000-27,000 W. | Official specifications | Excluded: module and installation configuration change capacity and output. |
| EcoFlow DELTA Pro Ultra X | 6,144 Wh per battery module; 12,288-184,320 Wh system range. | Rated 12,000-36,000 W; no separate turbo rating is published. | Up to 10,000 W per inverter. | Official specifications | Excluded: module and installation configuration change capacity and output. |
Evidence and review
These sources support the definitions and planning method. Calculator results are still estimates, not measurements or guarantees.
- Anker SOLIX E10 product pageAnker SOLIX · Manufacturer specification — Open source
- EcoFlow DELTA Pro Ultra X specificationsEcoFlow · Manufacturer specification — Open source
- DOE Explains...BatteriesU.S. Department of Energy · Government reference — Open source
Estimate a confirmed configuration
Use the runtime calculator only after you know the installed battery capacity and the loads you intend to back up. Treat its result as a planning estimate, not an installation or safety plan.
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Power station model
Battery capacity (Wh): 1024 WhContinuous output rating (W): 1800 WSurge output rating (W): 2700 W
Estimated runtime13h 3m8h 10m – 16h 13mEstimated runtime: 13h 3m, 8h 10m – 16h 13m
Output path
Estimated runtime
13h 3mEstimated runtime: 13h 3mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative8h 10m
Estimated13h 3m
Optimistic16h 13m
Conservative assumes harder conditions; optimistic assumes favorable conditions.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 1024 Wh
- Usable energy
- 783 Wh
- 1024 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
- 13h 3m
- 783 Wh / 60 W = 13h 3m
- 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 v2
WattRunTime.com
WattRunTime estimate
Estimated runtime
13h 3mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy783 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative8h 10m
Estimated13h 3m
Optimistic16h 13m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy783 Wh1024 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 runtime13h 3m783 Wh / 60 W = 13h 3m
Assumptions
- 1024 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.
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Capacity guide
Usable Capacity vs Rated Capacity
A 1,000 Wh label is the starting point, not a promise that 1,000 Wh reaches your device.
Efficiency guide
Inverter Efficiency Losses
AC is convenient, but the inverter changes battery energy into wall-style power and some energy is lost as heat.
Margin guide
Reserve and Battery Health
A runtime plan is safer when it leaves margin for age, cold, changing load, and measurement error.
FAQ
Plan modular whole-home battery systems without treating their expandable capacity and installed output as one portable power-station specification.
Why is this not in the portable station finder?
The finder assumes one source-backed battery capacity and portable output semantics. Modular home systems change with installed modules, inverters, and transfer equipment, so one portable record would be misleading.
Can I estimate runtime for a modular system?
Yes, after confirming the installed battery capacity and supported output. Use the calculator for load planning, then verify the installation and critical-load plan with the manufacturer and a qualified installer.