ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,809, issued on Jan. 13, was assigned to SolaX Power Network Technology (Zhejiang) Co. Ltd. (Hangzhou, China).

"Method for controlling battery charging/discharging current in off-grid mode of hybrid energy storage inverter" was invented by Chaohou Liu (Hangzhou, China), Haichao Guan (Hangzhou, China), Tianhong An (Hangzhou, China) and Qikang Wei (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for controlling battery charging/discharging current in an off-grid mode of a hybrid energy storage inverter that is based on photovoltaic and a lithium battery. If photovoltaic energy is sufficient and a battery is not full...