Rolling Square - TAU2 Charcoal Black - Retail Packaging

TAU® 2 | 3in1 emergency keyring power bank

Introducing TAU 2 - your trusty, always-charged, universal keyring emergency power bank. Never again will you have to suffer the indignity of your phone giving up on you at the worst possible moment. You’ll no longer need to carry bulky power banks to make important calls, pay with your phone, or use GPS maps, even towards the end of the day when your phone's battery is running low.

You'll never forget to re-charge it

With TAU 2, forgetting to charge your power bank is a problem of the past. Charge your TAU 2 just by putting away your keys the way your mother told you. We even took the time to give you a quick and easy way to set up its charging dock on a desk, on a wall, or even the door side table. Now your power bank is always fully charged and within reach right alongside your keys, eliminating the frustration of a dead battery when you're on the go. Your keys are always in the right place and your power bank is always charged.

Your keys' new best friend

TAU 2 is so small and compact that it easily fits on your keyring without adding any bulk. The fact that it hooks on your keys means that so long as you have your keys you also have power. The fact that it's always charged means that the Charging Dock will serve as your new tidy place for keys, seamlessly recharging TAU 2 without you even noticing, so it's ready for your next departure. Say goodbye to carrying around a separate power bank with cables in your bag or pocket, or worse, forgetting to bring them with you!

Battery capacity

TAU 2 may not immediately captivate with its 2000mAh capacity, but it's truly impressive. We tested smartphones from major processor producers, revealing three battery improvement ranges: small-battery phones gained up to 54%, mid-battery phones up to 35%, and large-battery phones up to 28%. We calculated these results conservatively, considering battery consumption data from producers, reviewers, and real-life tests, factoring in dispersion and performance decrements due to background apps. Visit the "battery capacity" section on our Kickstarter's TAU 2 page for a detailed understanding of our tests and results!

Key features (3in1)

• Charge USB-C devices
• Charge Lightning devices
• Charge Micro USB devices

Extra features

• Included NFC tag for Digital ID and Lost mode
• Optional adhesive QR Code stickers for Digital ID and QR Lost mode
• Pass-through charging (USB-C as input, Lightning/Micro USB as output)
• Quick-release keyring hook

	ALWAYS WITH YOUR KEYS TAU 2 is designed to be 'impossible to forget', as it's always paired with your keys. By nesting your keys at home, you’ll also recharge TAU 2 by magnetically attaching it to its Charging Dock.
DOCK INSTALLATION TAU 2's magnetic Charging Dock includes a USB-C cable that must be plugged into an electric outlet. Attach the double-sided adhesive layer to its back, and firmly stick it to any wall, desk, or surface
	ALWAYS CHARGED TAU 2 allows you to have power alongside your keys. At home or in the office, the Charging Dock is the perfect tidy spot for your keys, seamlessly recharging TAU 2 in the meanwhile.
AVERAGE BATTERY GAIN With 2000mAh, TAU 2 boosts small phones' batteries by up to+54%, up to +35% for mid-sized, and up to +28% for larger ones. Average battery gain: +30%.