Provided is a secondary battery for testing an internal short, and a method and apparatus for testing an internal short of a secondary battery using the same. The secondary battery for testing an internal short according to the present disclosure includes a positive electrode side metal terminal having one end disposed between a positive electrode plate and a separator of the secondary battery, and a negative electrode side metal terminal having one end disposed between a negative electrode plate and the separator of the secondary battery, and is used to cause an internal short by contact between the other end of the positive electrode side metal terminal and the other end of the negative electrode side metal terminal.

A cover for a housing including a number of press-fit pins which have at least two different press-fit zones. A battery sensor including a cover of this kind, and a method for producing a battery sensor are also disclosed.

In accordance with at least selected embodiments, the present disclosure or invention is directed to novel or improved testing apparatus for testing lead acid batteries and/or their components, and/or the efficacy of their components, testing tables, testing systems, and/or related methods. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved methods for testing lead acid batteries and/or their components, and/or the efficacy of their components. In accordance with at least certain selected embodiments, the present disclosure or invention is directed to novel or improved systems for testing lead acid batteries and/or their components, and/or the efficacy of their components. In accordance with at least particular selected embodiments, the present disclosure or invention is directed to novel or improved apparatus and methods for testing a lead acid battery or batteries whereby the battery or batteries are subjected to motion typical of that experienced by the battery or batteries in use or in the field.

Systems and methods for battery testing including a holder system. The holder system is designed to couple one or more transducers to a battery under test, wherein the one or more transducers are configured for electrochemical-acoustic signal interrogation (EASI) of the battery. The holder system includes at least one arm to house at least one transducer to be coupled to the battery, and a pressure applying device to apply pressure to the at least one transducer, and to control pressure between the at least one transducer and the battery. The holder system is also configured to determine the pressure between the at least one transducer and the battery and adjust the pressure applied to the at least one transducer based on the determined pressure.

A battery management system configured to couple to at least one battery module, the battery management system includes a contact configured to couple between the at least one battery module and a machine, a sensor configured to sense an electrical parameter of the at least one battery module, and a control circuit configured to receive an output of the sensor and determine a value of the electrical parameter. The sensor includes an inverting charge pump coupled to receive a positive supply voltage and generate a negative supply voltage, and a differential amplifier coupled to the at least one battery module and supplied by the positive supply voltage and the negative supply voltage, the differential amplifier configured to generate an output representing the electrical parameter.

A method for assembling a battery module including a unified connection array with a flexible connector is described. The flexible connector can include a plurality of pads that are secured to a central spine. The flexible connector may be a single piece connector. The flexible connector can include monitors that are mounted to the flexible connector to gather data regarding battery cells of the battery module.

A high voltage diagnostic connector includes a housing holding a positive terminal, a negative terminal and a ground terminal with a cover removably coupled to the housing. An HVIL assembly is in the housing having a HVIL contacts and an HVIL shunt. An HVIL switch is held by the housing including a shunt actuator operably coupled to the HVIL shunt to position the HVIL shunt in an un-shunted position to open an HVIL circuit when in the primary position and in a shunted position to close the HVIL circuit when in the secondary position. The shunt actuator is movable between the primary position and the secondary position when testing the positive terminal, the negative terminal and the ground terminal with the testing device during diagnostic testing of the high voltage diagnostic connector.

A multipoint communication system for a battery management system includes a distributed antenna at least partially disposed within a battery pack, a plurality of nodes, each node being wirelessly coupled to the distributed antenna and configured to acquire battery information, and a radio frequency gateway electrically coupled to the distributed antenna.

A flexible connector a battery system and a method for assembling in a battery assembly. The apparatus can include a plurality of pads that are secured to a central spine. The flexible connector may be a single piece connector. The flexible connector can include monitors that are mounted to the flexible connector to gather data regarding battery cells.

A spot welding-type system is provided adapted to facilitate evaluating a rechargeable battery. The system includes first and second electrodes to contact the rechargeable battery. The first electrode includes a first contact surface to facilitate inducing an internal short circuit within the rechargeable battery during operation of the spot welding-type system, and the second electrode includes a second contact surface to contact the rechargeable battery. The first and second contact surfaces are dissimilar contact surfaces, and the second contact surface is larger than the first contact surface. The system with the rechargeable battery disposed between the first and second contact surfaces produces, in operation, a localized pressure on, and a localized heating of, the rechargeable battery in a spot-sized region where the first contact surface contacts the rechargeable battery to facilitate generating and evaluating a potential internal short circuiting of the rechargeable battery.