That does not matter even if it is true. A company can make two batteries and both have the same ratings but they build one to fail twice as fast as the other one.

Welcome to most companies of today.

 

Just like tires. The Conti DWS tires are awesome. The Conti Control Contact, which is supposedly a DWS clone made exclusively for discount tire, is a POS. Looking at the reviews, the two tires perform vastly different.