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ROCKSOLAR Weekender MAX PRO 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 ROCKSOLAR Weekender MAX PRO stores 277.5 Wh and delivers up to 250 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 2.1 hours. Last source check: 2026-08-26. This is an estimate, not a guarantee.
Capacity277.5 Wh
AC output250 W
Surgeunknown
Chemistryunknown
ConfidenceEstimated
Source regionglobal/general
Checked2026-08-26
Swipe table sideways
| Battery capacity | 277.5 Wh |
|---|---|
| Battery chemistry | unknown |
| AC output | 250 W |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | unknown |
| Solar input | unknown |
| Weight | unknown |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-26 |
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.
Swipe table sideways
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | above tracked AC output | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 5h 18m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 7h 1m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 18h 19m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 2h 7m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with ROCKSOLAR Weekender MAX PRO prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 278 WhContinuous output rating (W): 250 WSurge output rating (W): n/a
Estimated runtime3h 33m2h 13m – 4h 24mEstimated runtime: 3h 33m, 2h 13m – 4h 24m
Output path
Estimated runtime
3h 33mEstimated runtime: 3h 33mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative2h 13m
Estimated3h 33m
Optimistic4h 24m
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
- 278 Wh
- Usable energy
- 213 Wh
- 278 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
- 3h 33m
- 213 Wh / 60 W = 3h 33m
- 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
3h 33mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy213 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative2h 13m
Estimated3h 33m
Optimistic4h 24m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy213 Wh278 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 runtime3h 33m213 Wh / 60 W = 3h 33m
Assumptions
- 278 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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Good fit when
- Capacity is a compact class; use it for small electronics and short essentials rather than high-wattage appliances.
- Tracked AC output is 250 W, so high-draw appliances and tools need careful filtering.
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: battery chemistry, surge output, dc output, usb-c output, solar input, weight.
- Weight is unknown, so portability should not be inferred from this model page yet.
- Confidence is not marked verified; keep the linked source context visible before making a purchase or emergency plan.
Related ROCKSOLAR Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
Weekender MAX
111 Wh, 80 W AC output, confidence: Estimated.
Weekender
88 Wh, 80 W AC output, confidence: Estimated.
Sources
- ROCKSOLAR Weekender MAX PRO official product page (official; checked 2026-08-26)