Litheli B288 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 Litheli B288 stores 287 Wh and delivers up to 300 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 2.2 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.

Litheli B288 portable power station
Capacity287 Wh
AC output300 W
Surgeunknown
ChemistryLi-ion
ConfidenceEstimated
Source regionglobal/general
Checked2026-08-27
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Key specifications for Litheli B288.
Battery capacity287 Wh
Battery chemistryLi-ion
AC output300 W
Surge outputunknown
DC output126 W
USB-C output100 W
Solar inputunknown
Weightunknown
ConfidenceEstimated
Lifecycle statusUnknown
Source regionglobal/general
Last verified2026-08-27
Weight stays unknown because the page quotes 13.2 lbs, 3.5kg and a 5.99kg shipping figure that do not agree. Surge and solar input are not published.

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.

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Runtime starting-point estimates for Litheli B288.
ScenarioDefault loadEstimateScenario confidenceStation page
Full-size refrigerator500 W at 33%above tracked AC outputEstimatedUse calculator
CPAP without heated humidifier40 W at 100%5h 29mEstimatedUse calculator
Starlink Mini32 W at 100%7h 16mEstimatedUse calculator
Wi-Fi router12 W at 100%18h 57mEstimatedUse calculator
LED TV100 W at 100%2h 12mEstimatedUse calculator

Calculator for this station

Adjust watts, duty cycle, reserve, output path, and startup surge with Litheli B288 prefilled from the source-linked specs above.

Loading calculatorPreparing calculator
Power station model
Battery capacity (Wh): 287 WhContinuous output rating (W): 300 WSurge output rating (W): n/a
Litheli B288
Estimated runtime3h 40m2h 17m – 4h 33mEstimated runtime: 3h 40m, 2h 17m – 4h 33m
Output path

Estimated runtime

3h 40mEstimated runtime: 3h 40m

This setup is tight. Reduce load, use DC where possible, or choose a larger station.

Conservative2h 17m
Estimated3h 40m
Optimistic4h 33m

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
287 Wh
Usable energy
220 Wh
287 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 40m
220 Wh / 60 W = 3h 40m
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

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 300 W, so high-draw appliances and tools need careful filtering.
  • USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.

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: surge 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 Litheli Records

Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.

B300SE

288 Wh, 300 W AC output, confidence: Estimated.

B218

216 Wh, 200 W AC output, confidence: Estimated.

B1000

1,069 Wh, 1,800 W AC output, confidence: Estimated.

Sources