Why Apple does not have a backup battery for Apple devices?

Why Apple does not have a backup battery for Apple device? Recommended us that of our full when we are on the road, so they should do a backup battery for their devices instead of other companies do. The backup battery that I use for my iPhone 5 c don't let my phone screen timeout as he does when I'm with the regular wall charger. Can anyone help?

Consult the manual for your backup battery.  There should be a switch or a button to activate the phone load.  It should not be left in charge mode all the time because the phone thinks it has unlimited power when charging, so disabled several energy-saving features (like display sleep, closing a connection Wi - Fi when he sleeps).

Tags: iPhone

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