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Comments on UPS for radio?
I have been using a big switching supply for my shack. I intend to
change over a to deep-cycle, flooded lead-acid battery if the grid goes down. It is, however, problematic operating a 13.8 volt radio on a lead-acid battery showing a voltage of 12 volts under load. I am thinking of replacing the power supply with a 20 amp marine battery charger that will automatically drop to float charge, charging a 105AH flooded deep-cycle battery. The battery would feed a "battery booster" -- a DC-to-DC converter that will maintain 13.8 volts at 85% efficiency. The booster would feed my equipment. Are there any drawbacks to this arrangement -- other than it requires a battery? The advantage is it won't boil the battery and will be immune to outages and brownouts. Also, it will do a fast recharge after an outage. It seems to me to be superior to the "PWRGate" (isolator?) arrangement promoted by West Mountain Radio: http://www.westmountainradio.com/PWRgate.htm I think I can put together a system that will provide long-run, 13.8V UPS to a 30-amp-max rig for around $175, not counting the battery. Comments? Ken KC2JDY Ken (to reply via email remove "zz" from address) |
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