የቪላ መካከለኛ የአግላ ባትሪ የቫይል ቁጥጥር የተደረገበት መሪ አሲድ ነው (SARAS ) ባትሪ, የአናግሪ ባትሪ በመባልም ይታወቃል. 'Middle' indicates its medium to large size and capacity, suitable for applications solar battery, alarm battery, telecommunications battery, emergency lighting battery, communications battery, control equipment battery, security equipment battery, geophysical equipment battery, marine equipment battery, medical equipment battery etc.