Source-linked model

GRECELL 500W Runtime Calculator

Name: GRECELL 500W
Brand: GRECELL

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.

Capacity519.48 Wh

AC output500 W

Surge1,000 W

ChemistryNCM Li-ion

Confidenceverified

Checked2026-06-29

Battery capacity	519.48 Wh
Usable capacity	unknown
Battery chemistry	NCM Li-ion
AC output	500 W
Surge output	1,000 W
DC output	120 W
USB-C output	60 W
Solar input	unknown
Weight	6.4 kg
Confidence	verified
Last verified	2026-06-29

PV input is published as voltage and current rather than a direct wattage ceiling, so solar input stays unknown instead of being inferred.

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
Full-size refrigerator	500 W at 33%	2h 25m	estimated
CPAP without heated humidifier	40 W at 100%	9h 56m	estimated
Starlink Mini	32 W at 100%	13h 9m	estimated
Wi-Fi router	12 W at 100%	1d 10h	estimated
Laptop	60 W at 100%	6h 51m	estimated

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Good fit when

Capacity is best suited to lighter essentials such as routers, laptops, CPAP planning, lights, and smaller camping loads.
Tracked AC output is 500 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 tracked, but device startup behavior should still be checked against the actual load.
Still unknown in the source-backed record: usable capacity, solar input.

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Sources

GRECELL 500W product specifications (official; checked 2026-06-29)