Might as well go for the best buy and hope it lasts....just read the warranty fine print..For batteries I go buy whatever is most convenient to get a hold of when they fail (not if). There are only like 2 or 3 manufacturers of batteries left anyway. Granted they are all built to a specification but still.... I am hard pressed to get more than 5 years of service out of one in any application regardless of brand or chemistry/construction type....