Hot off the heels of an international release, Xiaomi intends to announce new Mi 11 Pro and Ultra models at an event scheduled for Monday. Although none of the devices have full official specifications yet, the company is teasing a brand new battery technology that will debut with the Mi 11 Ultra.

Xiaomi is switching to silicon-oxygen-anode batteries for its next flagship, as announced on Weibo and Twitter. Silicon oxygen battery technology is relatively new and has never been used to power a smartphone. The company says that the move was inspired by electric cars, and offers much faster charging times for the latest phone while using a much smaller footprint inside the case.

Xiaomi also teased a new chipset, the first since 2017. The latest processor, the Surge S1 SoC, never received a proper sequel, but with several hints about Weibo specifically highlighting the word “wavy”, it seems like a Surge S2 may be just days away.