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TAU® - Always-charged power bank
$29.90
Color: Charcoal Black
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Mars Red
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TAU® is the emergency power bank for every device (Lightning, Micro USB, USB-C). Its keyring form factor is perfect to let you attach it to your keys when carrying it around.
TAU® is the emergency power bank for every device (Lightning, Micro USB, USB-C). Its keyring form...
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PRODUCT INFO


TAU® is the best 3in1 power bank, fitting the Lightning, Micro USB, and USB-C ports. It’s the smallest power bank in the world, so you can attach it to your key chain, and comfortably use it in your daily life. It’s the best portable power bank and alternative to your regular, heavy battery charger.

TAU® features a USB-C and our patented Lightning + Micro USB cable, and is compatible with virtually every portable device in the world. Thanks to its proprietary dock, charging it is as easy and seamless as hanging your keys once you get home.

Designed with love ❤️️ in Switzerland

    TECHNICAL SPECIFICATIONS

    Compatibility

    Lightning (iPhone, iPad, AirPods)
    USB-C devices
    Micro USB devices

    Technical

    Size 60x45x12mm / 2.32x1.77x0.47in
    Weight: 40g / 1.4oz
    Capacity 1400 mAh
    Holdable weight: 350gr / 12oz

    WHAT'S IN THE BOX

    TAU® Power bank

    TAU® Dock & Micro USB power cable
    Screws and wall plugs
    Nano suction double-sided layer
    User manual
    Eco-friendly packaging

    HOW TO USE
    REVIEWS
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    TAU® - Always-charged power bank
    $29.90
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    quantity
    ADD TO CART
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    $29.90
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    Customer Reviews

    Based on 1073 reviews
    51%
    (547)
    33%
    (351)
    16%
    (173)
    0%
    (1)
    0%
    (1)
    J
    Julie Cullen
    TAU Charger

    Ordered the TAU chargers for Christmas for my children

    Tried one out the other day

    Very impressed

    TAU charged up quickly and then used to charge phone

    Very happy

    Always worrying about children being out and about with a phone which has run out of battery

    That impressed going to buy some more for nieces and nephews

    C
    C.A.
    I loved this device. Unfortunately, it completely died after 2 years.

    I bought it on Oct 27, 2021, by it stopped working completely by 2024.

    D
    Daniel O
    I preordered the Tau 2 in January and…

    I preordered the Tau 2 in January and expected the package in February. When I did not receive my package, I reached out to the rolling square support team. They worked with me to get a reshipment out in a timely manner and I received my order. overall happy with the customer service received.

    H
    Hyomyung
    Ordering quick, shipping had issues but was solved quickly, quality of products is good, except 1...

    Ordering products were super easy and quick. Shipping took around 14 days (after the initial package). For some reason my package was sent back to their warehouse and I contacted the customer service and David contacted me within hour after I sent email to customer service and it was quickly resolved and David arranged the new shipping and that arrived without any problems. So, after some complications during the shipping, I received my order items.

    I am please with the quality of the products that I have ordered, except 1 product is not that great. Charger for tau 2 powerbank wall charger dock. For some reason it will not charge the powerbank because the alignment is not correct and therefore there is potential electric sparking if you try to align the powerbank to wall charger dock, I do not recommend this product, just use the charger dock that comes with powerbank, it works best.

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