TIANQIU Electronics Technology Co. is a high-tech manufacturer specialized in developing manufacturing and distributing all kinds of battery products. Since its foundation in the early 1990s, TianQiu has enjoyed high reputation in supplying alkaline button cell batteries. With more than 10 years development, TianQiu has grown up into a large enterprise that is professional in supplying more than 100 kinds of batteries, including button cells, cylindrical batteries, special-use batteries, camera batteries and so on. From TIANQIU electronics, comes this high quality 394 battery. This 394 battery offers extended service life and consistent discharge to keep your device running and deliver power when you need it. 394 battery equivalents are also reffered to as AG9, 280-17, and SB-A4. This is a viable option for all 394 battery replacements.