Not sure how much this will help for batteries but I've found it helpful for other products, go to the manufacturer's site and try to find a list of authorized

Not sure how much this will help for batteries but I've found it helpful for other products, go to the manufacturer's site and try to find a list of authorized distributors. Most of the time you'll find that an authorized distributor also has an amazon store front. Not sure if it still avoids the stock co-mingling problem though if it is stocked through an amazon warehouse.