The Echo Meter Touch module requires a lightning data connection with a smartphone or tablet in order to work, and, unfortunately, many battery cases do not allow for external data connections. If you need some extra battery life while using your Echo Meter Touch module, you can use a battery case provided it has lightning or USB data pass-through.
Aside from increasing your phone or tablet's battery capacity, there are several ways to reduce the amount of power it uses:
- Before using the Echo Meter app, close all other apps that are running in the background. On iOS, double-press the home button and swipe each app panel upwards to close it. On Android, press the Recent Apps button and swipe each app panel away to close it.
- Lower the device's screen brightness.
- Once you start recording, press the sleep/wake button to turn off the device's screen while continuing to record.
- Rather than using the device's built-in GPS receiver, use an external GPS module paired via bluetooth.