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Old 06-24-2008, 08:35 AM   #1
Richard Stouffer
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Join Date: Nov 2007
Posts: 188
Default Parallel Battery to Power Supply for Current Reserve

I’m trying to figure out how to set up a battery as a reserve power source for my dedicated power supply for my amplifier. The power supply is an Astron RS-70M rated at 57 amps continuous/90 amps peak. It is driving an SG-500 SmartPowerCube amp. The amp trips when the draw exceeds the available current and a reset requires cycling the power switch. It doesn’t happen very often, but it certainly would create problems in a remote set up.
Using a battery for the reserve seemed to make the most sense as it provides an emergency power supply so I have purchased a 108 AHr, deep cycle, AGM battery. I was planning to charge the battery with the power supply. The power supply manufacturer, however, said that I would need to place a blocking diode between the power supply and the battery to protect the power supply in the event of a power failure.
Any of you guys familiar with such a set up?

Thanks,
Richard- WU5K
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