NEW DELHI, India — POCO could be preparing to push smartphone battery capacity to a new level in India with its upcoming X8 series. Tipsters Sanju Choudhary and Debayan Roy have suggested that the POCO X8 and POCO X8 Power may arrive around September, with the higher-end X8 Power reportedly carrying a 10,000mAh battery that would make it the first POCO smartphone to reach that capacity.