# Three-in-One Keychain Power Banks The INDEMAND TAU Power Bank Key Fob Has a 1,400mAh Battery By Michael Hemsworth | Published 2021-09-17 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/power-bank-key-fob References: [coolmaterial](https://coolmaterial.com/tech/indemand-tau-power-bank-key-fob/?utm_source=rss&utm_medium=rss&utm_campaign=indemand-tau-power-bank-key-fob) & [indiegogo](https://www.indiegogo.com/projects/tau-the-power-bank-that-is-always-charged) The INDEMAND TAU power bank key fob is an impossibly compact accessory for smartphone users looking to maintain connectivity without weighing themselves down with too much additional gear. The device features a size that's suited for [placement on a keychain](https://www.trendhunter.com/trends/keychain-apple-watch-charger) and is equipped with a 1,400mAh battery inside that will deliver a roughly 40% charge for smartphones. The unit boasts two integrated cables that will work with USB-C, [Apple](https://www.trendhunter.com/trends/ridge-magnetic-power-bank) Lightning and microUSB connections. The INDEMAND TAU power bank key fob connects magnetically to a charger that's meant to be hung on a wall to ensure it's always charged and ready for use, while also functioning as a dedicated spot to hang keys. The highly portable device can power up two devices at the same time for increased efficiency. ## Trend Insights (Trend Hunter) - Score: 6.5/10 - Popularity: 97% | Activity: 88% | Freshness: 10% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### What Makes This Trend Stand Out - **Compact Power Banks:** There is an opportunity for businesses to create even smaller and more efficient power banks for on-the-go charging. - **Multi-device Charging:** Businesses can create power banks that can charge not only smartphones, but also laptops, tablets and other devices at the same time. - **Magnetic Charging Accessories:** Magnetic charging accessories could be the next big thing in the market of power banks and chargers. ### Sectors Adopting This - **Consumer Electronics:** The Consumer Electronics industry can continue to innovate by producing more portable, efficient and versatile power banks. - **Accessories:** Businesses selling accessories for smartphones and other devices can incorporate power banks as multifunctional items to further attract customers. - **Home Improvement:** The Home Improvement industry can create multi-functional wall-mounted charging stations for power banks, smartphones and other devices. ## Related on Trend Hunter - [Pocket-Sized Smartphone Batteries](https://www.trendhunter.com/trends/power-bank-keychain.md) - [Wearable Triangular Power Banks](https://www.trendhunter.com/trends/mchaos-power-bank.md) - [Three-in-One Power Banks](https://www.trendhunter.com/trends/anker-power-bank-10k-fusion.md) - [Magnetic Ultra-Slim Power Banks](https://www.trendhunter.com/trends/minimag-power-bank.md) - [Compact Pill-Shaped Power Banks](https://www.trendhunter.com/trends/portable-capsule-power-bank.md) - [Adaptable Modular Power Banks](https://www.trendhunter.com/trends/statik-snapncharge-universal-power-bank.md) - [Five-in-One Magnetic Chargers](https://www.trendhunter.com/trends/ridge-magnetic-power-bank.md) - [Magnetic Multifunctional Power Banks](https://www.trendhunter.com/trends/torras-magsafe-battery-pack.md) - [Magnetic Display-Equipped Power Banks](https://www.trendhunter.com/trends/supermini-go.md)