You are downloading the BatteryTile XAP file v22.214.171.124 for Windows Phone. BatteryTile is a free and useful Productivity app: I'm one of such method to show you live of your battery. But I'm not really the same like the other, because I'm a live tile, which is disappear how ... You can now download the offline XAP file to install & try it.
Download Locations for BatteryTile 126.96.36.199 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline BatteryTile XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.