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#1
August 21st 10, 03:43 AM
posted to rec.aviation.soaring
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Trig TT21 Transponder ... reports?
On 8/20/2010 5:48 PM, Martin Gregorie wrote:
I'd seriously suggest a visit to your local RC model shop to look at battery chargers. $60 - $100 gets you a cycling charger that can not only peak charge a partially discharged SLA battery without harming it, but can measure its capacity. Record the measured capacity every year and bin the battery when it shows a 30% drop and you may even save money. What units do you suggest? The ones in that price range I'm familiar with (like the LN5014 Multiplex) discharge at a low rate (~0.4 amps) and charge at only 14.0 volts, not really a peak charger, which should use 14.6 at least. -- Eric Greenwell - Washington State, USA (netto to net to email me) - "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm http://tinyurl.com/yb3xywl - "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what you need to know tinyurl.com/yfs7tnz 
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