Yes, the UI of JD can be very intimidating. Anyone using it needs to carefully study the below link. After awhile I mastered the settings. If you don't read everything you won't realize JD has a "learning process". During this phase it learns when to connect to your home network. Until it learns this, you'll have to manually turn on WiFi sometimes. I discovered it did indeed do this. This problem was it wasn't consistent enough for me. So far Easy Battery Saver has been rock solid.
Just FYI, the built-in power saver mode turns off 4G. In order to use 4G you must set the Power Mode to "High Performance".
Overview | How to use JuiceDefender
RH
I leave it to power mode with sleep policy set to auto. It turns off my WiFi when not in range of a known network. I usually keep the Verizon data network off if I'm not using it anyway .
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