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Old 02-04-2017, 07:32 AM
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Walt Walt is offline
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,840
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I've been using this Sterling battery maintainer unit for about a year now to charge my avionics back up battery (EarthX 12A). Operation has been flawless to date. I previously ran a diode resistor setup but I never really liked that due to the charge curve. The Sterling unit is more of a constant current 3A unit and charges the backup battery much quicker than the old diode/resistor setup. Great service and communication from the company as well.

http://www.sterling-power-usa.com/st...aintainer.aspx
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Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154

Last edited by Walt : 02-04-2017 at 07:36 AM.
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