It's the smallest external battery in the world, so you can attach it to your keychain and use it easily on a daily basis. And no need for cables, they are integrated!
It's the smallest external battery in the world, so you can attach it to your keychain and use it easily on a daily basis.
It's the best portable charging solution and an alternative to your usual bulky battery charger.
Here, the goal isn't to recharge your MacBook to 100%—we're aiming for efficiency and compactness: unlike all other external batteries, which are often very heavy and bulky, TAU is a very light battery, about the size of a car key, that can restore about 30% of your phone's energy, which is more than enough to save your day!
TAU® is equipped with a USB-C cable as well as our patented Lightning + Micro USB cable, and is compatible with most portable devices in the world. Thanks to its proprietary docking station, recharging is as simple and convenient as hanging up your keys when you get home.
