For Pixel, we recommend you do the following two things:

Turn off Battery optimization for Bob:

  1. Go to Settings → Apps & notifications → Advanced → Special app access →  Battery optimization

  2. Scroll to Bob and select it → select “Don't optimize”

Note: Despite the term “Battery optimization”, switching to this state should not change the usage in a significant way. Bob is already optimized to use a very low battery power. In fact, this is actually the guideline of both Android and iOS – not to explicitly close apps (excluding cases such as radio or navigation apps).

Turn off Adaptive battery for Bob:

  1. Go to Settings → Battery → Adaptive Battery

  2. Scroll to Bob and turn off Adaptive Battery