Every Laptop or Mac computer will eventually have a battery whose life has come to an untimely end. Every battery inside a computer has only a set amount of charges it will take before it no longer continues to fully charge. If your portable computer is showing a lackluster battery performance, or, if your portable computer feels like the battery is bubbling up inside, as in the case is no longer the correct shape it should be, APCS can quickly diagnose this problem and provide you with a timely solution.
APCS does not stock new batteries but does have batteries from retired Laptops and Macs so if your battery is failing, call APCS to see if they have your specific battery available as a used battery.