How long can a power supply vehicle provide electricity?

[Victor]

A power supply vehicle (also known as a generator vehicle) can provide continuous electricity as long as the equipment is not damaged, the generator does not malfunction, and there is sufficient fuel supply. Advantages of generator vehicles: Generator vehicles use engines that start without electricity and use air as the cooling medium. This not only eliminates the need for battery and radiator maintenance or the hassle of adding coolant, but also allows operation in extreme environments such as high/low temperatures and sandstorms. Functions of generator vehicles: They can be used for emergency power supply in communication, telecommunications, coal mines, and oil fields. They play a crucial role in power restoration and supply during unexpected power outages caused by emergencies.

[Nate]

As someone who frequently uses a power supply vehicle for outdoor camping, I've found that the actual power supply duration doesn't have a fixed answer—it all depends on the battery capacity and the power consumption of the equipment being used. Based on my experience, a standard 20 kWh power supply vehicle battery can theoretically last 4 hours when charging an average electric vehicle (assuming 5 kW power draw), but in reality, it's closer to 3.5 hours due to battery heating and conversion efficiency losses. Temperature plays a significant role—winter conditions may halve the supply time because low temperatures reduce battery activity, while excessive summer heat can also shorten lifespan. Aged batteries perform even worse, so I recommend checking the battery status at least once a year; regular maintenance can extend power supply duration. Additionally, ensure proper ventilation to keep the power supply vehicle well-cooled, as overheating may trigger shutdowns. To maximize usage time, connect only essential low-power devices like phones or lighting, which can extend operation to dozens of hours.

[McLeonardo]

During my last road trip, I used my power supply vehicle to provide emergency charging for an electric car, which was quite practical. However, the actual power supply duration really depends on the situation. My power supply vehicle has an 18 kWh battery, and when used with a 2 kW charging gun, it lasted nearly 9 hours at full capacity, which felt pretty good. That time, the temperature was around 25°C, which was ideal; in sub-zero temperatures, it might only last half that time. Normally, I mainly use it to power my laptop and small fan, easily sustaining 30 to 40 hours with almost no pressure. For maintenance, I always make sure to fully charge it before trips and avoid heavy loads, as frequent high-power usage can accelerate battery degradation.

[HarleyAnn]

The duration of power supply from a power bank depends on several key factors: battery capacity, power demand of the equipment, and ambient conditions. Generally, a larger capacity extends the duration, while a lower power load prolongs operation time. In practical use, efficiency losses of approximately 10-20% should be factored in. For example, a 10 kWh vehicle powering a 3 kW device can last about 3 hours; but if only supplying a 500 W appliance, the duration doubles to 20 hours. Temperature also matters—low temperatures may reduce power supply by 30%, so it's recommended to operate within moderate temperature ranges.