On their first anniversary, OnePlus announced its own external battery pack — dubbed the OnePlus Power Bank. The 10,000mAh battery pack will be available in Sandstone Black and Silk White, and will carry a price tag of only $15.  The portable pack does not feature any kind of physical hardware keys, but does feature three LEDs to indicate the level of charge. The LEDs can be activated by simply shaking the portable charger. While the OnePlus Power Bank can be purchased without any invite, it will only be available from early next year through the official website of OnePlus.

With a capacity of 10,000mAh, the OnePlus Power Bank is capable of recharging the OnePlus One from 0 to 100 percent nearly 3 times. The power bank features two USB 2.0 ports that can each output 2A current. One The company also provided information about its upcoming custom ROM, which it will be offering to its Indian users due to its recent spat with Cyanogen Inc, which also led to the One being banned for sale in India. The ROM will be “stock, bloat-free and highly customizable,” and can also be flashed by OnePlus owners residing in other parts of the world if they wish to.