Brain 2.0 - Battery Brain for Newtons monitors your battery level and can alert you if the battery level drops below a user-defined threshold. If you've used your Newton a lot, you already know how quickly it can eat through batteries. But, you will probably be surprised at how fast your battery life decreases once your batteries drop below a certain level. Battery Brain monitors that decrease and will warn you as your batteries become weaker and weaker. Battery Brain will also automatically turn off sounds and the "Receive beams automatically" setting at user defined levels to help conserve battery power. This version is a complete rewrite from the ground up, with many changes!