In various implementations, a housing for a battery tester may include a body with a first side and an opposing second side. The first side may include a presentation member, such as a screen and an input member. The screen may include a touch screen and/or the input member may include a keypad, such as a keypad with arrows. The second side may be magnetic such that the battery tester can be coupled to a magnetic surface. The second side may, in some implementations, include holster(s) that allows clamps to be stored in the holster. The holster(s) may be removable.

Disclosed is a method for producing a sensor and a battery pressure detecting sensor produced thereby, which operate in a short mode when a pressure of a standard level or more is applied, thereby preventing the breakage and ignition of a battery due to swelling. The disclosed battery pressure detecting sensor disposes a membrane sheet formed with a first accommodation hole under a conductive sheet, has a part of the conductive sheet connected to a first terminal through a first accommodation hole, and has the membrane sheet connected to a second terminal.

Disclosed is a method for producing a sensor and a battery pressure detecting sensor produced thereby, which operate in a short mode when a pressure of a standard level or more is applied, thereby preventing the breakage and ignition of a battery due to swelling. The disclosed battery pressure detecting sensor disposes a membrane sheet formed with a first accommodation hole under a conductive sheet, has a part of the conductive sheet connected to a first terminal through a first accommodation hole, and has the membrane sheet connected to a second terminal.

The current sensor includes a battery terminal part that has electrical conductivity and is fastened to a battery post constituting a negative electrode of a battery, and a shunt resistor that is conductively connected to the battery terminal part via a joint part, the shunt resistor including a first detection terminal and a second detection terminal for detecting an electric current. The battery terminal part includes a third detection terminal for detecting a voltage of the battery between the joint part and the battery post. As a result, the current sensor can properly detect a voltage of the battery together with an electric current.

The current sensor includes a battery terminal part that has electrical conductivity and is fastened to a battery post constituting a negative electrode of a battery, and a shunt resistor that is conductively connected to the battery terminal part via a joint part, the shunt resistor including a first detection terminal and a second detection terminal for detecting an electric current. The battery terminal part includes a third detection terminal for detecting a voltage of the battery between the joint part and the battery post. As a result, the current sensor can properly detect a voltage of the battery together with an electric current.

A battery charger and method is disclosed for detecting when a battery has a low state of health while simultaneously charging or maintaining the battery. A battery charger includes a processor; a non-transitory memory device; a power management device to receive an input power and to output a charging current; a pair of electrical conductors to electrically couple with a battery, and a display electrically coupled to the processor. The display being configured to indicate a bad battery indicator when the battery has a low state of health and whether the battery is good to start.

A probe card according to the present invention inspects a workpiece including a plurality of pads. The probe card includes: a secondary battery of a planar shape including a planar electrode of a planar shape and disposed such that the planar electrode faces the workpiece; and an electrical connection body disposed between the workpiece and the secondary battery. The secondary battery includes a structure that a wiring can be drawn from an optional portion of the planar electrode. The electrical connection body includes a plurality of contacts protruding toward the facing pads and electrically connects a plurality of pads and the planar electrode with a plurality of contacts.

A probe card according to the present invention inspects a workpiece including a plurality of pads. The probe card includes: a secondary battery of a planar shape including a planar electrode of a planar shape and disposed such that the planar electrode faces the workpiece; and an electrical connection body disposed between the workpiece and the secondary battery. The secondary battery includes a structure that a wiring can be drawn from an optional portion of the planar electrode. The electrical connection body includes a plurality of contacts protruding toward the facing pads and electrically connects a plurality of pads and the planar electrode with a plurality of contacts.

An embodiment connecting system includes a branch connector connected to a battery and configured to branch a high voltage, a first interlock circuit within the branch connector configured to form a closed circuit by being connected to a second interlock circuit within a load connector when the load connector that transfers the branched high voltage to a load is connected to the branch connector, a transmitting antenna transmitting a radio wave when the closed circuit is formed, and a controller identifying the branch connector based on a resonance frequency of the radio wave and determining whether a connection defect occurs in the identified branch connector based on an electric field strength of the radio wave, wherein the resonance frequency corresponds to a conductor pattern formed at a predetermined position of the transmitting antenna.

A jig pressing-type pressing short-circuiting inspection method includes the steps of: pre-aging battery cells, each of which is manufactured by inserting an electrode assembly in a battery container, injecting an electrolyte into the battery container, and sealing the battery container. The method includes inserting the plurality of battery cells in an active jig; pressing the active jig; and inspecting electric current of the battery cells. The inspection method permits detection of a low-voltage defect of a battery cell in a pre-aging state, which shows a high voltage regulation per capacity, thus greatly reducing the inspection time, and enabling simultaneous inspection of a plurality of battery cells. In addition, a micro-defect occurring in a stack-folding type battery cell can be accurately detected, which is difficult to be detected by the conventional inspection method.