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