Read the negative reviews to identify patterns. If a lot of the negative reviews mention the same problem I don't care if it has 50,000 5-star reviews. If Amazon really wanted to help their customers make informed choices they would give us that info in tabular form: * 15 users reported that this battery's capacity is not as high as the manufacturer claims * 25 users report this battery has a high self-discharge rate * 10 users report the battery will not hold a charge