ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,549, issued on Oct. 21, was assigned to SHENZHEN HELLO TECH ENERGY Co. LTD (Guangdong, China).
"Energy storage device" was invented by Enlun Huang (Guangdong, China), Zhongwei Sun (Guangdong, China), Dongxiong Tan (Guangdong, China) and Jian Fang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses an energy storage device, including a battery pack, a waterproof plug, and a water immersion detection unit. The battery pack includes a housing and a connection terminal. The housing has an opening, and the connection terminal is disposed at the opening. The waterproof plug includes an electrical connection me...