Extend MacBook battery life.
Freedom from the power outlet.

Meet BatteryBox. It's a portable battery that works for 3000 cycles and can power a MacBook Air for 13 hours straight, or fully charge an iPhone 9 times.

See the BatteryBox

30 day trial, 12 month warranty

If you don't love it, we'll take it back and give you a full refund - no questions asked.

Meet BatteryBox. It's a portable battery that works for 3000 cycles and can power a MacBook Air for 13 hours straight, or fully charge an iPhone 11 times.

Extra power for your MacBook + your gadgets

BatteryBox includes a special cable for powering MacBooks, and a USB port for charging phones, tablets, and anything else. Extra 60Wh of charge for your MacBook, with a USB port built in.

Up to
7.4hrs
extra for
13" MacBook Pro Retina

Up to
13hrs
extra for
13" MacBook Air

Up to
80hrs
extra for
iPhone 5s

See more devices

Up to
3.5hrs
extra for
15" MacBook Pro Retina

Extra
1.5x
charges for
iPad Air 2

Extra
4.6x
charges for

Galaxy S6

Extra
7x
charges for
iPhone 6

Extra
4x
charges for
Nexus 5

Device
not here?
Ask Us!

Maintains your MacBook battery health

BatteryBox powers your laptop rather than charging it, keeping the battery at the same charge percentage.

By bypassing the MacBooks built-in battery, BatteryBox minimizes the number of cycles (and stress) on the internal battery, prolonging it's life.

BatteryBox Charger

3x longer life than any other battery

The batteries in BatteryBox keep working like brand new even after many years, thanks to patent-pending BatteryOS artificial intelligence. This technology provides better performance without battery-life degradation.