The market for portable battery packs generated $360 million in the 12 months ending in March 2017 in the US alone. The brands behind these packs are largely anonymous — Kmashi, Jackery, and iMuto — and they often stay that way. ... Except Anker. The steady rise of the company’s profile is proof that it’s possible to meet one very specific consumer need and ride that wave as it continues to ripple out to other markets. A majority of Anker’s sales come from cables and wall chargers, and it’s now moving into the smart home and auto market — anywhere a plug and a cable can solve a problem. ... Yang and his team started a company with the sole purpose of selling a better third-party accessory. But they stumbled onto a more lucrative reality: mobile phones, once niche luxury items, are now ubiquitous centerpieces of our digital lives. Each of these phones, and all the products that connect to them, need their own cable and plug. And each and every day these devices die before we want them to. ... In many ways, Anker’s success is born from the failures of premier manufacturers like Apple and Samsung. Where those companies introduce points of friction — like ever-thinner devices with short battery lives — Anker offers a remedy. ... Anker takes a more straightforward approach by solving the inevitable problems technology creates.