# US 12,111,363 B2 · Battery state-of-charge protection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,111,363 B2 - Document ID: US12111363B2 - Status: Granted - Kind: B2 - Application number: 17/155,901 - Filed: 2021-01-22 - Published: 2021-07-29 - Granted: 2024-10-08 - Earliest claimed: 2020-01-24 - Assignees: Aclara Technologies LLC - Applicants: Aclara Technologies LLC - Inventors: Mark Dubuque - Web page: https://patentgrep.com/patent/US12111363B2 ## CPC - G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC - G06Q 50/06: Energy or water supply - G01R 31/367: Software therefor, e.g. for battery testing using modelling or look-up tables - G01R 31/371: with remote indication, e.g. on external chargers - G01R 31/379: for lead-acid batteries - G06Q 10/04: Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem" (market predictions or forecasting for commercial activities G06Q30/0202) - H02J 7/35: with light sensitive cells - H02J 7/82: Control of state of charge [SOC] - H02J 13/1331: {using wireless data transmission} - H02J 2101/24: Photovoltaics - Y02E 10/56: Power conversion systems, e.g. maximum power point trackers - Y02E 40/70: Smart grids as climate change mitigation technology in the energy generation sector - Y04S 10/123: the energy generation units being or involving renewable energy sources - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS ## Abstract Systems and methods for monitoring and/or protecting state-of-charge of one or more batteries. One method comprises determining, via a controller, location information associated with the battery. The method includes determining, via the controller, one or more battery parameters. The method includes calculating, based on the one or more battery parameters and the location information, a state of charge of the battery. The method includes controlling, via the controller and based on the state of charge, a mode of the battery. ## Claims ### Claim 1 A method for protecting a state-of-charge of a battery, the method comprising: determining, via a controller, location information associated with the battery, wherein the location information includes an ambient temperature; determining, via the controller, a temperature of the battery; calculating, based on the temperature of the battery and the location information, a state of charge of the battery; and controlling, via the controller and based on the state of charge, a mode of the battery. ### Claim 2 (depends on 1) The method of claim 1, further including reporting, via the controller, a status of the battery. ### Claim 3 (depends on 2) The method of claim 2, wherein the status further includes at least one selected from a group consisting of a change in state of charge, a power mode, a configuration change, and a warning notification. ### Claim 4 (depends on 1) The method of claim 1, wherein the battery is a lead acid battery. ### Claim 5 (depends on 1) The method of claim 1, wherein the location information further includes at least one selected from a group consisting of a latitude, a longitude, an expected season, a time, a date, and a weather condition. ### Claim 6 (depends on 1) The method of claim 1, further comprising determining, via the controller, one or more battery parameters, wherein the battery parameters include at least one selected from a group consisting of a current battery voltage, a maximum battery voltage, a battery current, a maximum battery current, a temperature of the battery, and a maximum temperature of the battery. ### Claim 7 (depends on 1) The method of claim 1, wherein the mode of the battery is one selected from a group consisting of a low power mode and a full power mode. ### Claim 8 (depends on 1) The method of claim 1, the method further comprising: determining the location of the battery has changed; and updating the location information based on the new location. ### Claim 9 A method for protecting a state-of-charge of a battery, the method comprising: determining, via an electronic processor and based on a location, a contextual information of the location; determining, via the electronic processor and based on the contextual information, a model indicating an expected low power schedule; receiving, via the electronic processor, a battery size, a solar panel size, and the model; determining, via the electronic processor, a state of charge threshold for the low power schedule; and controlling, via the electronic processor, a power mode of the battery. ### Claim 10 (depends on 9) The method of claim 9, wherein the contextual information is a local weather forecasting data. ### Claim 11 (depends on 9) The method of claim 9, further comprising determining, based on the location and the solar panel size, an optimal tilt angle of the solar panel. ### Claim 12 (depends on 9) The method of claim 9, further comprising entering a low power state based on the low power schedule. ### Claim 13 (depends on 9) The method of claim 9, further comprising determining a power loss probability based on the model. ### Claim 14 (depends on 13) The method of claim 13, further comprising entering a low power state when the power loss probability passes a threshold. ### Claim 15 A power system comprising: a solar panel; a power source configured to receive energy from the solar panel; and an electronic processor coupled to the power source, the electronic processor configured to: determine, based on a climate model, an upcoming temperature below a freezing value; determine a state of charge of the power source; transmit a signal to the power source instructing the power source to enter a low power mode; and activate a power reserve for the duration of the freezing temperature. ### Claim 16 (depends on 15) The system of claim 15, wherein the climate model includes determining a winter start date based on historical temperature data. ### Claim 17 (depends on 15) The system of claim 15, wherein the electronic processor is further configured to determine a concentration of sulfuric acid of the power source. ### Claim 18 (depends on 15) The system of claim 15, wherein the low power mode maintains the power source at a capacity above a freezing capacity. ### Claim 19 (depends on 15) The system of claim 15, wherein the electronic processor is further configured to determine at least one from a group consisting of a power source voltage, a power source current, and a power source temperature. ### Claim 20 (depends on 15) The system of claim 15, wherein the electronic processor is further configured to transition the power source from a normal power mode to the low power mode. ### Claim 21 (depends on 20) The system of claim 20, wherein the electronic processor is further configured to transition the power source from the low power mode to the normal power mode; and provide hysteresis provisions when transitioning from the lower power mode to the normal power mode.