How long does you battery last if you are running on just the battery? If you can run for aboout 2.5 to three hours, your battery is in good shape. WiFi drains a battery more rapidly. It will not hurt to run it down to 5% and then fully charge it again. At that point, take the battery out and store it in the refrigerator. I do use a ziplock. Remember to install it and run it down every month or so.