Nihon Kohden BSM-4113K Patient Monitor Battery Compartment With Battery Interface Wiring

Q1: The device display shows "Unable to recognize battery," is it a battery compartment malfunction?

A1: A battery compartment malfunction is highly likely. First, install the battery in another working device to see if it functions normally. If it does, the battery is not the problem. Then check if the metal contacts inside the battery compartment are normal, checking for oxidation, deformation, etc.; check if the connecting cable is broken or the interface is loose. If the contacts and cable are normal, the internal detection circuit of the compartment may be damaged.

Q2: After installing the battery, the device can be turned on but shuts down as soon as the power is unplugged. Is the battery compartment faulty?

A2: Most likely. It may be due to poor contact of the power supply contacts inside the compartment, preventing the battery from supplying power, or a broken battery interface cable. Professional equipment is needed to check the connection between the cable and the contacts.

Q3: The contacts in the battery compartment are yellowed, how do I fix it?

A3: You can clean them with anhydrous alcohol and dry them; if the contacts are deformed, the entire battery compartment must be replaced to avoid excessive contact resistance that could damage the device.