Energy storage systems for charging an electronic device and methods of operating the same are disclosed. The energy storage system includes an AC bus, a DC bus, a plurality of batteries, a plurality of breakers, a plurality of inverters, and a controller operatively coupled with the batteries and the breakers. The method includes calculating, by the controller, an amount of power necessary to charge the electronic device; operating, by the controller, the breakers such that the batteries of a discharging station is configured to discharge through a charging station; and charging the electronic device using the batteries.

A resource scheduling method is provided. The energy storage device pool includes at least one energy storage device. One example method includes: receiving a resource scheduling application request, determining a target energy storage device from the energy storage device pool based on the resource scheduling application request, and allocating an electric power resource to a power consumption device by using the target energy storage device.

A power storage apparatus includes a plurality of power storage modules connected in series and a control apparatus that controls each power storage module. The power storage module includes a battery section, a controller, a communication unit, a first insulator that insulates the controller from the communication unit, and a second insulator having a withstand voltage higher than a withstand voltage of the first insulator. The second insulator is provided between the communication unit of each power storage module and the control apparatus.

A multi-bay power supply including a plurality of energy storage devices, a power output configured to provide power from the plurality of energy storage devices to a peripheral device, and a controller including an electronic processor. The controller is configured to determine which battery of the plurality of energy storage devices has a highest state of charge, provide power to the peripheral device by discharging the energy storage device having the highest state of charge for a first configurable amount of time. The controller is further configured to provide power to the peripheral device by discharging the energy storage devices having the highest state of charge and any energy storage devices in the plurality of energy storage devices having a state of charge that is within a tolerance of the highest state of charge.

The invention relates to a battery pack type device including a first terminal (101), a second terminal (102) and a plurality of energy storage elements between these terminals, each element including:

a) at least one switch for connecting it with, or to disconnect it from, one or more other element(s);
b) at least one conductor (15, 17) for conducting a current, parallel to the element, when the latter is not connected with one or more other element(s);
c) at least one switch (20) for establishing a short-circuit between the terminals of the battery when the latter is disconnected or supplies a zero voltage;
d) a control circuit (30), specifically adapted to: select at least one first energy storage element and at least one second energy storage element, at least one of these elements being to be heated up, to make a current circulate at least from the first element to the second element when the terminals (101, 102) are short-circuited; stop the current when a setpoint temperature for one or more element(s) of the pack is reached.

An electrical device includes a control or regulating circuit and a plurality of electromechanical battery interfaces configured to supply the electrical device with a maximum permissible operating voltage using at least one exchangeable battery pack, which is releasably accommodated by the electromechanical battery interfaces. The electromechanical battery interfaces are configured such that exchangeable battery packs of at least two different voltage classes can be accommodated. The control or regulating circuit electrically connects several exchangeable battery packs of a lower voltage class in series and/or in parallel such that a resulting battery voltage does not exceed the maximum permissible supply voltage.

Disclosed is a method and system for detecting faults of a battery heating system and relays. In particular, a method for detecting welding of each relay such as a main relay, a precharge relay or a heater relay and a method for detecting a fault of a battery heating system such as a short circuit, disconnection or damage of each heater are provided by sensing a voltage. In the methods, the on/off state of the heater relay and the high voltage relays is controlled through a predetermined process to detect a fault of the heater relay or the high voltage relay, and welding of the heater relay or the high voltage relay is then detected from a voltage for fault detection which is sensed through a voltage sensing circuit unit for fault detection.

A secondary battery includes: a cathode, an anode, and an electrolytic solution including a sulfuric acid compound represented by X.sup.n+[M(Rf).sub.a(CN).sub.b(SO.sub.4).sub.c].sup.m−, where X.sup.n+ is an ion such as a metal ion, M is an element such as a transition metal element, Rf is a group such as a fluorine group, a is an integer of 0 to 4, b is an integer of 0 to 5, c is an integer of 1 to 4, m is an integer of 1 to 3, and n is an integer of 1 or 2. The cathode, the anode, and the electrolytic solution are provided inside a film-like outer package member.

The present disclosure provides a programmable controller for monitoring battery performance and usage at a remote pump jack location. The disclosure provides an energy efficient controller and display system which allows the operator to quickly and accurately test batteries in an installation. It uses programmable logic to switch between system modes and decide which battery supplies power to the output. Further it will sense any high voltages at and disable the input from the faulty source. Further, the programmable logic is designed such that the mode selection process is automatic when the system is in operation. The purpose is to elongate battery and connected equipment life by preventing battery failure. The present disclosure also provides an easy and economical method of communicating potential battery failure and status to an operator via cell phone communication.

A battery switching system is provided for battery operation. The battery switching system includes at least one first battery device and one second battery device, and a battery switch device. The first battery device and the second battery device have different voltages. The battery switch device has an accommodating space to accommodate the first battery device and the second battery device. When the battery switch device is in a charge mode, the battery switch device charges the first battery device and second battery device of lower voltage to match the voltage of the other of the first battery device and second battery device of higher voltage before simultaneously charging both the first battery device and second battery device. When the battery switch device is in a power mode, the battery switch device drains the first battery device and second battery device of high voltage to match the voltage of the other of the first battery device and second battery device of lower voltage before simultaneously draining both the first battery device and second battery device.