The Vanner VANN-Guard Battery Equalizer is an efficient and highly reliable method of obtaining a 12 volt DC power source from a 24 volt DC electrical system. The VANN-Guard makes the batteries look like they are in series and parallel at the same time. In addition to providing regulated 12 volt power, the system ensures that battery voltages remain equal which significantly extends battery life. Ideally suited for vehicle and alternate energy applications, the VANN-Guard is designed to save your batteries and the money you would spend replacing them. Users of the Vanner VANN-Guard know that it is the most cost effective and dependable solution for dual voltage systems.
A typical system would include a 24VDC power source, such as an alternator or solar array, two 12 voltbattery banks in series, and the VANN-Guard. The VANN-Guard connects to the 24 volt, 12 volt and ground terminals of the battery system. When the 12 volt loads require power, the VANN-Guard ensures that the current is taken equally from both batteries, and that the voltages of the two batteries are kept equal. This equalization ensures extended battery life and provides a stable 12 volt supply for operating accessories.
Paralleling VANN-Guard: Models are available which provide 60, 80 and 100 amps of 12 volt DC power. VANN-Guard Battery Equalizers may also be operated in parallel to provide more power. For example, two 60 amp units can be installed to provide 120 amps of 12 volt DC power.
The Vanner VANN-Guard Battery Equalizer is an extremely reliable device and, when installed according to the instructions, will provide reliable operation for an indefinite period of time. However, if a system abnormality should develop that would cause a VANN-Guard malfunction, damage to the battery system could result if 12 volt loads are present.