Tolino Tab is deliverd with Android 4.4.4.
Avast mobile security works very eine.
Therfore it’s an miracle why the Avast battery APP isn’t kompatibel.
PLZ fix this ‘misstake’.
Are you getting a error while installing/trying to use it ?
If so, what is the exact error ?
Is there another battery saver installed (perhaps the manufacturer did it) ?
Are you using a screen overlay tool ?