The battery is not user replaceable, which means you'll either need to send it back to Palm for a fresh battery in 2 to 3 years when it fails to hold sufficient charge, or break out the philips head screwdriver and do it yourself with an aftermarket replacement battery. This also means that you won't be able to swap in a spare battery in the field when not near a charger. Thankfully, the LifeDrive charges very quickly when you are near a charger.