OnePlus Offers - Buy OnePlus Power Bank 10000mAh worth Rs.1299 at Rs.888. The all-new OnePlus Power Bank offers a portable charging solution - fast, compact, and convenient. The powerful 10,000 mAh high-density Lithium-polymer battery fully charges your favorite OnePlus device, including OnePlus 8, 8 Pro, and 8T. Even better, dual USB ports can charge two devices simultaneously.