iPhone Battery Issue. Apple recently issued an official statement regarding the performance of iPhone batteries in the older models of their phones. Users have been coming to us with concerns whether or not its true and wanting know if they need to change batteries on their iPhone's. Without getting into any further discussions or theories, lets just say its a good idea to know if your battery in your iPhone or Macbook is health or not. We offer an on the spot smart test for this concern. Please feel free to drop in.