Patent ID: 9525307
Filing Date: 2016-12-20
CPC Classification: H02J,H04M,H04W

Claim Text:
1. Automatic dual battery charger mobile communication apparatus, comprising: a first internal battery and a second internal battery, wherein the first internal battery charges the second internal battery, and concurrently, provides power to electronic circuitry of the apparatus; a detachable battery configured to charge the first internal battery; a housing comprising the first internal battery and a second internal rechargeable battery, the detachable battery attached to, or inserted into, the housing to charge the first internal battery; a processor comprising a low battery detection circuitry configured to detect low battery condition of the first internal battery and the second internal battery; battery charging circuitry configured to charge the first internal battery and the second internal battery, and a power switching circuitry configured to supply power from the first or second internal battery to the apparatus electronic circuitry; low battery detection signaling circuitry; and radio frequency (RF) transceiver circuitry configured to establish RF communication with other communication devices through a wireless communication network, wherein when the first internal battery provides power to the electronic circuitry, the battery charging circuitry is configured to obtain power from the first internal battery and charge the second internal battery, and the low battery detection circuitry, upon detecting of a low battery condition for the first internal battery, causes the processor to activate the low battery detection signaling circuitry notifying the user to attach the detachable battery to or into the housing allowing for the battery charging circuitry to obtain power from the detachable battery to charge the first internal battery, and concurrently, the power switching circuitry is configured to provide power from the second internal battery to the electronic circuitry.