Introduction
Thank you for purchasing a Vanner VoltMaster Battery Equalizer. We are confident that you will be very
pleased with its performance because our Battery Equalizers are designed and manufactured by skilled
professionals using the highest standards in workmanship. With minimum maintenance and care, you can
be assured of many years of trouble free service.
General Description
The Vanner VoltMaster 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 equalizer 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 VoltMaster Battery Equalizer is designed to save your
batteries and the money you would spend replacing them. Users of the Vanner VoltMaster Battery
Equalizer 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 volt
battery banks in series, and the VoltMaster Battery Equalizer. The Battery Equalizer connects to the 24
volt, 12 volt and ground terminals of the battery system. When the 12 volt loads require power, the
Battery Equalizer 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.
Parallel Equalizers: Models are available which provide 10, 20, 60, 80 and 100 amps of 12 volt DC
power. VoltMaster 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. Family 1, Family 3,
Family 4, and Family 5 models may be paralleled in any combination. Family 2 models may be paralleled
only with other Family 2 models.
NOTE: The Vanner VoltMaster 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 Battery Equalizer malfunction, damage to the
battery system could result if 12 volt loads are present. If your system application is critical you may
consider installing a Vanner Model EM-70 Electrical System Monitor. This module monitors the battery
system' s voltages and balance, and provides fault signals that can be wired to warning lights, buzzers or
other control/warning devices. Models 60-50M , 60-60M and 65-60M have the EM-70 built in. Call Vanner
for more details.
