Maintaining Vehicle Power During a Battery Replacement

When disconnecting or replacing the vehicle battery, the power supply to the vehicle electrical system is interrupted. Depending on the vehicle, this can result in the loss of stored data, codes, or settings. Vehicle voltage maintenance devices, also known as memory savers or code maintainers, continue to supply power to the vehicle electrical system during certain maintenance and repair work.

Autotestgeräte Leitenberger offers solutions for 12- and 24-V vehicle electrical systems. The NSV 01 is designed for 12-V systems and is powered by the 230-V mains supply. It connects to the vehicle via the vehicle power outlet or the cigarette lighter.

The NSV 03/1 is intended for 24-V vehicle electrical systems and requires an external 24-V power source or battery. In addition to voltage maintenance, the device features surge suppression to protect the vehicle’s electronics.

Both devices are reverse-polarity and short-circuit protected, feature an audible warning tone in case of overload, and include an electronic protection function.

Before use, you must verify whether the vehicle in question allows voltage maintenance via the designated connection point and review the vehicle manufacturer’s specifications regarding battery replacement.