The present disclosure relates to a reconfigurable battery system and method of operating the same. An example apparatus includes at least one memory, instructions in the apparatus, and processor circuitry to execute the instructions to determine a state of charge of a battery, determine a closed circuit voltage of the battery, determine a value of a parameter based on a ratio of the state of charge and the closed circuit voltage, and control a switch coupled to the battery based on the value of the parameter, the controlling of the switch to either cause the battery to be coupled to a battery string or cause the battery to be disconnected from the battery string.

A wristwatch band for a computerized watch base has a bracelet portion and a connector element. The bracelet portion extends in a length direction at least partially around a wrist of a wearer and has a power supply device to supply power to the computerized watch base. The connector element secures the computerized watch base to the bracelet portion. In the length direction, the bracelet portion may be discontinuous and terminate at first and second clasp ends. First and second clasp sections may be provided respectively at the first and second clasp ends of the bracelet portion, the first and second clasp sections releaseably connecting around the wrist of the wearer. Electrical connectors may be provided in each clasp section such that when the clasp is connected around the wrist of the wearer, an electrical connection is made from the first clasp end to the second clasp end.

Modular and portable solar-powered charging devices are described. The solar-powered device may include a housing, a rechargeable battery disposed within the housing, and a solar panel positioned along an exterior of the housing. The solar panel is electrically connected to the rechargeable battery. The solar-powered charging device is configured to transfer electrical power generated by the solar panel and stored in the rechargeable battery to a second solar-powered charging device when the housing is positioned adjacent to the second solar-powered charging device.

A foldable solar panel including at least two solar modules mounted to a substrate. The foldable solar panel includes hook and loop tape to secure the foldable solar panel in the folded configuration. The foldable solar panel includes at least two straps and at least two horizontal rows of webbing operable to attach the foldable solar panel to a load-bearing platform.

A panel device is provided. The panel device includes an energy transfer zone; at least one coil configured to generate an electromagnetic field for wirelessly charging an external electronic device that is positioned in the energy transfer zone; and an internal drive unit configured to rotate or move the panel device in relation to an exterior object in proximity to the panel device.

The disclosure relates to a power pack to be used when there is a need for an efficient or portable power source, for example, when the electrical grid is saturated, overused, unreliable or inoperative. The power pack is configured to utilize a renewable energy source, such as solar energy, to charge a rechargeable battery within a battery pack. Said battery pack, through the use of a battery management system, may then provide AC or DC power to an external device that requires electricity, or store power for a later use.

The present invention is a USB receiver charger for laptops consisting of four internal layers and two external layers. The external layers feature a thin photovoltaic (PV) panel that captures both sunlight and artificial light, integrated on both sides of the USB. Internally, the first layer houses high-powered LED COB lights, illuminating the second layer—the PV panel. The PV panel absorbs light, converting it into electrical energy stored in a rechargeable battery. Excess power is stored in a power bank. The rechargeable battery distributes the energy, powering the LED lights and transferring the remaining power to the device being charged. A solar charge controller, PV energy converter, and temperature controller are included to regulate power distribution and prevent overcharging. The LED lights dim when the power bank reaches maximum capacity to prevent unnecessary energy generation. The USB, equipped with three PV panels, generating minimum 25 watts for efficient laptop charging.

A photo rechargeable electrochemical energy storage device, a power generation device, and a method for fabricating the photo rechargeable electrochemical energy storage device in a mostly unrestricted atmospheric environment are disclosed. The power generation device including a rechargeable electrochemical energy storage device including a photoanode arranged beneath a transparent electrode, the photoanode comprising an oxide of titanium; and a micro-power conversion controller configured to control delivery of power under load, and recharge the rechargeable electrochemical energy storage device when not under rated load and when the transparent electrode is exposed to sufficient light and/or grid power is available.

A renewable-energy electrical generation and distribution system including a first container and a second container. Each of the first container and the second container includes a power source disposed within the container and deployable therefrom, and generating energy from a renewable resource. A first compartment is disposed within the container, and retains a battery in communication with the power source. A power distribution system is disposed within the container and in communication with the battery and with the power source. A communications system is disposed within the container and configured to communicate data via an ad-hoc mobile communications network formed by the first container and the second container and configured to operate independent of any communication network not part of the first container and the second container forming the ad-hoc mobile communications network.

A safety system for detecting a critical condition in a battery pack. The safety system includes a control unit configured to obtain measurement data relating to a battery unit voltage and/or a battery unit temperature of at least some of the plurality of battery units, and to, based on the obtained measurement data, detect a critical condition of the battery pack, a stand-alone power supply configured to supply electric power to the safety system, a stand-alone communication interface configured to provide and/or communicate information relating to any critical condition of the battery pack detected by the control unit.