Tim, A discussion on this topic was found on the Batlabs Batboard, and I have excerpted two relevant paragraphs from separate posts:
"From the Hardware screen, the RSS gives you four battery type choices: None, Lead Acid-Linear, Lead Acid Non-linear, and NICAD. Use the Lead Acid-Linear selection for flooded-cell lead acid batteries and the Lead Acid Non-linear setting for gel cells. There is no setting for AGMs, but I've been told by folks whose judgment I trust that, if your charger doesn't have a specific curve for AGMs, you can use the flooded cell curve with no significant impact on the batteries." "This might be enough info for you to calculate runtime. Here's a table from power-sonic that might help. According to them, and in my experience, Lead_Acid_Non will float a gel cell properly - 2.26 volts per cell. Linear is for lead-antimony (flooded) cells - 2.21 volts per cell. Too low for lead-calcium (gel cell, AGM, etc). Too low float voltage makes the plates absorb water, and swell, and sulfate. So... It looks like the power supply does produce the correct voltages for the listed battery types. 3.5 amp current limit will take a long time to recharge a large battery - like a day and a half for 100 AH like the one in the link. But, really, how often will you take it to nothing?" The Quantar RSS manual 6881085E35-AJ mentions nothing about determining the proper setting on the Battery Equalization screen. BTW, a 26 Ah gel cell is hardly a "large" battery, since that rating is about 1/3 the size of a typical car battery. Perchance, did you mean 260 Ah? 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of tahrens301 Sent: Sunday, July 26, 2009 2:56 PM To: [email protected] Subject: [Repeater-Builder] Quantar Battery Type Selection What type of battery should I choose in the RSS Screen? Using a pair of large Gel Cells. 26AH each Lead Acid Linear or Lead Acid Non-Linear? thanks, Tim
