# US 2019/0245166 A1 · Battery pack for mobile devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0245166 A1 - Document ID: US20190245166A1 - Status: Published application - Kind: A1 - Application number: 16/235,185 - Filed: 2018-12-28 - Published: 2019-08-08 - Earliest claimed: 2008-01-18 - Assignees: Mophie, Inc. - Applicants: mophie inc. - Inventors: Daniel Huang; Matthew Brand - Web page: https://patentgrep.com/patent/US20190245166A1 ## CPC - H01M 10/46: Accumulators structurally combined with charging apparatus (circuits for charging H02J7/00) - G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/1632: {External expansion units, e.g. docking stations} - H01M 10/488: {Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density} - H01M 50/202: Casings or frames around the primary casing of a single cell or a single battery - H01M 50/247: specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/70: characterised by the mechanical construction - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - H02J 7/751: {concerning the insertion or the connection of the batteries} - H04B 1/3883: Arrangements for mounting batteries or battery chargers - H04B 1/3888: Arrangements for carrying or protecting transceivers - H04M 1/0254: {comprising one or a plurality of mechanically detachable modules} - H04M 1/0262: {for a battery compartment} - H04M 1/0283: {for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate} - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - H02J 7/82: Control of state of charge [SOC] - Y02E 60/10: Energy storage using batteries - Y10T 29/49108: Electric battery cell making - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04B: TRANSMISSION - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A battery pack is provided for a mobile communication device, comprising a casing defining a cavity that conforms, at least partially, to the outer shape of the mobile communication device and one or more rechargeable power cells housed within the thickness of the casing. An internal interface engages a corresponding interface on the mobile communication device to provide power from the one or more rechargeable cells to the mobile communication device. An external interface is electrically coupled to the internal interface in order to transmit signals from the mobile communication device to an external device and may further serve to recharge the one or more rechargeable power cells. The battery pack may also serve as an extendible platform by providing additional integrated communication interfaces and/or processors that can be utilized by the mobile communication device to extend its communication and/or processing capabilities. ## Claims ### Claim 1 (canceled) ### Claim 2 A protective battery case for use with a mobile electronic device, the protective battery case comprising: a protective casing comprising: a back wall configured to be positioned adjacent to at least a portion of a back side of a mobile electronic device that has a primary battery for powering the mobile electronic device; an upper wall configured to be positioned adjacent to at least a portion of a top of the mobile electronic device; a right side wall configured to be positioned adjacent to at least a portion of a right side of the mobile electronic device; a left side wall configured to be positioned adjacent to at least a portion of a left side of the mobile electronic device; a front opening configured such that a display of the mobile electronic device is visible through the front opening such that the mobile electronic device is usable while inside the casing; a supplemental battery housed within a thickness of the back wall such that the supplemental battery is configured to be positioned behind the back side of the mobile electronic device; a first interface coupled to the supplemental battery and configured to recharge the primary battery of the mobile electronic device with power from the supplemental battery; a second interface coupled to the supplemental battery and configured to recharge the supplemental battery, wherein the second interface comprises an external port configured to receive a connector for wired recharging of the supplemental battery; and a third interface coupled to the supplemental battery and configured to recharge the supplemental battery, wherein the third interface comprises a wireless charging device for recharging the supplemental battery wirelessly. ### Claim 3 (depends on 2) The case of claim 2, wherein the case is configured to wirelessly transmit signals to the mobile electronic device. ### Claim 4 (depends on 3) The case of claim 3, wherein the wirelessly transmitted signals comprise data or an alarm. ### Claim 5 (depends on 2) The case of claim 2, wherein the first interface comprises a connector configured to engage a corresponding port on the mobile electronic device. ### Claim 6 (depends on 2) The case of claim 2, wherein the casing comprises a bottom wall configured to be positioned adjacent to at least a portion of a bottom of the mobile electronic device, and wherein the first interface comprises a connector that extends upward from the bottom wall. ### Claim 7 (depends on 2) The case of claim 2, wherein the wireless charging device includes an inductive electrical recharging system. ### Claim 8 (depends on 2) The case of claim 2, further comprising a user input element configured to enable a user to start and stop recharging of the primary battery with the power from the supplemental battery. ### Claim 9 (depends on 2) The case of claim 2, wherein a thickness of the protective battery case is less than twice the thickness of the mobile electronic device. ### Claim 10 (depends on 2) The case of claim 2, further comprising a charge level indicator configured to indicate the charge level of the supplemental battery. ### Claim 11 (depends on 2) The case of claim 2, wherein a portion of the casing is flexible to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing. ### Claim 12 (depends on 2) The case of claim 2, wherein the casing comprises a lower case portion and an upper case portion configured to couple to the lower case portion, wherein the upper case portion is removable from the lower case portion to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing. ### Claim 13 (depends on 2) The case of claim 2, wherein the battery case is configured for use with a mobile phone, and wherein an outer surface of the casing generally conforms to an external shape of the mobile phone. ### Claim 14 A method of making a protective battery case for use with a mobile electronic device, the method comprising: providing a protective casing that comprises: a back wall configured to be positioned adjacent to at least a portion of a back side of a mobile electronic device; an upper wall configured to be positioned adjacent to at least a portion of a top of the mobile electronic device; a right side wall configured to be positioned adjacent to at least a portion of a right side of the mobile electronic device; a left side wall configured to be positioned adjacent to at least a portion of a left side of the mobile electronic device; a front opening configured such that a display of the mobile electronic device is visible through the front opening such that the mobile electronic device is usable while inside the casing; disposing a battery within a thickness of the back wall such that the battery is configured to be positioned behind the back side of the mobile electronic device; providing a first interface coupled to the battery and configured to provide power to the mobile electronic device from the battery; providing a second interface coupled to the battery and configured to recharge the battery, wherein the second interface comprises an external port configured to receive a connector for wired recharging of the battery; and providing a third interface coupled to the battery and configured to recharge the battery, wherein the third interface comprises a wireless charging device for recharging the battery wirelessly. ### Claim 15 (depends on 14) The method of claim 14, wherein the case is configured to wirelessly transmit signals to the mobile electronic device. ### Claim 16 (depends on 15) The method of claim 15, wherein the wirelessly transmitted signals comprise data or an alarm. ### Claim 17 (depends on 14) The method of claim 14, wherein the first interface comprises a connector configured to engage a corresponding port on the mobile electronic device. ### Claim 18 (depends on 14) The method of claim 14, wherein the casing comprises a bottom wall configured to be positioned adjacent to at least a portion of a bottom of the mobile electronic device, and wherein the first interface comprises a connector that extends upward from the bottom wall. ### Claim 19 (depends on 14) The method of claim 14, wherein the wireless charging device includes an inductive electrical recharging system. ### Claim 20 (depends on 14) The method of claim 14, further comprising providing a user input element configured to enable a user to start and stop power delivery from the battery to the mobile electronic device. ### Claim 21 (depends on 14) The method of claim 14, wherein a thickness of the protective battery case is less than twice the thickness of the mobile electronic device. ### Claim 22 (depends on 14) The method of claim 14, further comprising providing a charge level indicator configured to indicate the charge level of the battery. ### Claim 23 (depends on 14) The method of claim 14, wherein a portion of the casing is flexible to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing. ### Claim 24 (depends on 14) The method of claim 14, wherein the casing comprises a lower case portion and an upper case portion configured to couple to the lower case portion, wherein the upper case portion is removable from the lower case portion to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing. ### Claim 25 (depends on 14) The method of claim 14, wherein the battery case is configured for use with a mobile phone, wherein an external shape of the casing generally conforms to an external shape of the mobile phone.