Product Overview The 606090 is a 5V 4000mAh lithium-polymer pouch cell manufactured by VATS Battery, an ISO9001-certified lithium battery maker based in Guangdong, China. Built on a compact 10.6×60×90mm (T×W×L) footprint, it combines a stable 5V nominal voltage with a true 4000mAh capacity, so portable devices run longer on a single charge without adding bulk. Each cell is produced on automated lines and individually screened for capacity, voltage and internal resistance
