Note: The following information applies to the IS-TH1xx.x, IS-TH2xx.x and IS-VS1.1

When the smartphone reaches Battery power of 15% or less, the accessories powered via ISM interface stop working.

Android implemented a power safe mode, which turns off the connected USB device, which is powered by the i.safe MOBILE Smartphone itself. This rule takes effect as soon as the battery charge reaches 15% or less.