FAQ — Portable Battery & Generator

How many times can a power bank charge my phone?

Divide the power bank capacity (mAh) by your phone battery capacity, accounting for roughly 80% efficiency. A 20,000mAh power bank charges a 4,000mAh phone about 4 times. Using fast charging or extreme temperatures reduces efficiency slightly. Always check the output wattage to ensure compatibility with your device.

Can I use a portable power station to run a CPAP machine camping?

Yes. A 500Wh portable power station can run most CPAP machines for 1-2 nights depending on settings and the use of humidifier. Choose a unit with a pure sine wave AC outlet for sensitive medical devices. Some CPAP models also offer DC power options that draw less energy from the battery.

Are portable power stations allowed on airplanes?

Most airlines prohibit portable power stations over 160Wh in checked or carry-on luggage. Power banks under 100Wh are generally allowed in carry-on bags. For camping trips reached by plane, ship your power station or rent locally. Always check your specific airline's current policies before traveling.

What is the difference between a power bank and a power station?

Power banks (typically 5,000-30,000mAh) are compact and designed primarily for charging phones and small devices via USB. Portable power stations (100-3,000Wh) are larger units with AC outlets, DC ports, and high-wattage outputs capable of powering appliances, tools, and medical devices.

How long does it take to recharge a portable power station?

Recharge times vary widely. Via AC wall outlet: 1-3 hours for fast-charging units, 5-8 hours for standard units. Via solar panel: 4-12 hours depending on panel wattage and sunlight conditions. Via car outlet: 8-15 hours. Dual-input recharging (AC + solar simultaneously) dramatically reduces recharge times on extended trips.