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TECHNICAL INFORMATION
The following information will discuss DC power sources and how they affect 12 volt DC Audio and
Video products.
DC (DIRECT CURRENT) POWER
A large number of our products are designed for 12 volt DC applications. The power is supplied by
a variety of sources i.e., the battery, converters, ignition systems and solar power.
General Specifications
Our general specification for the voltage range of operation is 10 to 16 volts DC. TV's and VCP's
(video cassette players) require slightly more than 10 volts to function properly. Normally this 10.5 to
11 voltage requirement does not create a problem, but keep in mind the following points:
Voltage
The voltage of a fully charged battery (engine not running) is approximately 12.5 VDC. Once a load
(items being powered represent the “load”) is applied, the voltage will drop. How much the voltage
is reduced will depend on the following:
1. Current draw (amount of amperage). The higher the draw the greater the voltage will drop.
2. The size and length of the conductor (wire) supplying power.
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