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May 23rd 09, 04:44 PM
posted to rec.radio.amateur.equipment
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Battery Saver?
This item prevents your thermoelectric cooer from draining your car
battery to the point where you can not start your car: http://koolatrononline.stores.yahoo....ery-saver.html Can something like this be easily homebrewed from a couple of 30/40 amp horn relays and a couple of pots? That would permit its use for the same purpose in mobile QRO radio. I tested one and it open the circuit at 11.5V and closes it again at 12.8V. The dead zone is needed to prevent cycling. Ken KC2JDY |
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