Our 20,000 mAh power bank provides up to an additional 28 hours* of battery life to your tablet and up to 77 hours* to your smartphone.

Normally, power banks with a battery capacity lower than 27,027mAh (100 watt-hours) can be legally and safely taken on a flight.

Power banks should essentially be used sparingly. Using power banks to constantly keep your phone at 100% charge will over time damage the battery, which will lead to your phone not being able to retain its charge for long. To avoid these problems, avoid using your power bank to overcharge your phone.

MilliAmp hour means how much current a battery will discharge over a period of one hour. Higher numbers here reflect a long battery runtime and or higher storage capacity. Higher mAh ratings do not necessarily reflect on speed but more on runtime.

If you’re charging your power bank for too long regularly, then the power bank becomes less effective. To prevent overcharging, it’s essential to keep an eye on the charge from time to time. Most power banks will have some kind of light or display which will tell you if the battery is fully charged.

For lower-quality power banks, leaving your power bank plugged in after it is fully charged can cause overheating, especially if they are left to charge in direct sunlight. The safest option is to always unplug your power bank once it has reached full capacity!