June 2007 Issue
Battery Chargers: VDC Winds in a Walk
While Deltran has given up, VDC deserves kudos for taking the aircraft battery market seriously with 12- and 24-volt battery minders.
Although aircraft batteries arenít high on our list of things to worry about, that isnít the case for many owners, given the volume of reader mail we receive on this subject. Battery chargers figure into this concern, too, and following our report on this topic in January 2006, the subject has become, improbably controversial, spurred along by some new technological developments. By virtue of customer complaints about Gill sealed batteries, our previously recommended battery charger choice, the Battery Tender Plus by Deltran Corp., has been withdrawn from the aviation market and another company, VDC Electronics, has introduced an aviation-specific design based on charging profiles from the Concorde Battery Company. Our tests of this device show that itís promising, with circuitry that reduces the peak charging voltage limit and lowers the float voltage for aviation AGM batteries.
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