Battery Meter shows your current battery percentage and estimated discharge time. It displays remaining percentage and discharge time in the live tile. This information can be also displayed in the lock screen (setting required from Settings -> Lock Screen). Battery Meter is the only utility tool that allows you to keep an eye on your battery accurately. Note: Background and live tile updates occurs around every 30 minutes. If your battery has less than 20% remaining background updates are disabled. These are Windows Phone limitations and cannot be changed. Features: Shows the battery percentage. Shows the battery history for the last 48 hours. Has settings and network shortcuts and shows current state. Includes battery tips to make your battery last longer. Shows percentage and estimation in live tile and lock screen. Support for all size of live tiles: small, medium, – Has 3 notification types for low, draining and full battery. Auto refresh or manual refresh whenever you want. It is the perfect tool to keep an eye on battery. And most importantly app is FREE. Thanks.