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In conclusion, operating these video products
without the engine running will drain the battery
to the point where these products will perform
unacceptably in a short period of time.
Converters
Many RV OEM’s incorporate converters as
a source of 12VDC when connected to shore
power (110-120 VAC). Some models put out a
very clean DC supply where others may have a
considerable amount of AC ripple under
maximum load.
This AC ripple is filtered by the coach
battery when connected into the circuit, but
when the battery is removed or disconnected the
amount of AC ripple can create major problems
for audio and video products. Noise may result
and the line fuse may fail.
Ignition Systems