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ECTIVE AccuBox 120 Runtime Calculator
Use this source-linked record to estimate runtime from tracked capacity, output, charging, and weight fields. Unknown specs stay unknown until an official or manufacturer-grade source confirms them.
Quick answer: the ECTIVE AccuBox 120 stores 1,536 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 capacity | 1536 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | unknown |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | unknown |
| Solar input | unknown |
| Weight | 27.1 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | regional |
| Last verified | 2026-08-27 |
Runtime Starting Points
These are formula estimates using the tracked capacity, a 10% reserve, and each scenario's default wattage and duty cycle. They are planning starters, not measured runtimes.
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | AC output unknown | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | AC output unknown | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | AC output unknown | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | AC output unknown | Estimated | Use calculator |
| LED TV | 100 W at 100% | AC output unknown | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with ECTIVE AccuBox 120 prefilled from the source-linked specs above.
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Estimated runtime
19h 35mEstimated runtime: 19h 35mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
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.
- 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
- 1536 Wh
- Usable energy
- 1175 Wh
- 1536 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
- 19h 35m
- 1175 Wh / 60 W = 19h 35m
- 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.
WattRunTime.com
WattRunTime estimate
Estimated runtime
19h 35mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Runtime range
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Assumptions
- 1536 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.
- The selected station output rating is unknown, so running-load compatibility is not verified.
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Good fit when
- Capacity is in a mid-size planning class that can cover many overnight or essential-load scenarios when reserve and efficiency are included.
- AC output is unknown in the current source record, so do not assume it can run AC appliances.
Watch out for
- Surge output is unknown, so do not assume compressor, pump, or power-tool startup will work.
- Still unknown in the source-backed record: ac output, surge output, dc output, usb-c output, solar input.
- Tracked weight is in a heavier class; plan where it will live before treating it as a grab-and-go station.
- Confidence is not marked verified; keep the linked source context visible before making a purchase or emergency plan.
Related ECTIVE Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
BlackBox 15
1,497.6 Wh, 1,500 W AC output, confidence: Estimated.
BlackBox 10
1,036.8 Wh, 1,000 W AC output, confidence: Estimated.
BlackBox 5
512 Wh, 500 W AC output, confidence: Estimated.
Sources
- ECTIVE AccuBox series official product page (official; checked 2026-08-27)
