Efest is a battery and charging accessories brand specializing in high-performance lithium-ion batteries and chargers for vaping devices and other portable electronic equipment. Developed by Shenzhen Fest Technology Co., Ltd., the brand offers a wide range of products, including 18650 and 21700 batteries, intelligent LCD battery chargers, USB-C charging solutions, and battery storage accessories. Efest is known for its distinctive battery designs and practical charging solutions, serving vaping enthusiasts and users who require reliable rechargeable power sources. Its product lineup includes multi-bay chargers and various battery formats designed to support different device requirements.