AGM Batteries
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07-22-2005, 03:12
Post: #1
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AGM Batteries
My coach originally came with four 6 volt batteries that provide cat diesel
starting and coach d.c. power. When they failed I replaced them with four 12 volt Interstate SRM 24 deep cycle batteries wired in parallel per Blue Bird tech service suggestion. Awhile later, I installed a new Stat Power charger. This set up has worked reasonably well but I find I'm replacing 1-2 batteries per year due to internal shorts at about $75/battery. Most likely cause of the short life is difficulty keeping the electrolyte level up while in storage. Later, I added a battery filling system that makes it easier to maintain the levels but I'm still losing about 1-2 batteries per year. I've been looking at AGM batteries and Optima D34M deep cycles are now selling for about $150 each. Cold crank amps of the Optimas are 750 vs 550 for the Interstates I'm using. I think lifespan of the AGMs should be much better since loss of electrolyte is virtually eliminated. I could come out ahead even if they cost twice as much. I've also considered just installing two AGMs versus the four lead/acid batteries because we generally run the generator on the road or when dry camping. We don't use an inverter. Rest of the time we're hooked up at a campground or on float in storage so not sure we need all the battery capacity we've been buying. Anyone have experience with AGM's in their coach? Has anyone tried reducing the number of batteries to see if it causes a problem? Eric Johnson 84FC35SB in San Antonio |
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Messages In This Thread |
AGM Batteries - Eric Johnson - 07-22-2005 03:12
AGM Batteries - Mike Hohnstein - 07-22-2005, 03:34
AGM Batteries - scoggins_jim - 07-23-2005, 00:28
AGM Batteries - p_a_lazar - 07-23-2005, 00:59
AGM Batteries - Eric Johnson - 07-23-2005, 01:47
AGM Batteries - mbulriss - 07-23-2005, 03:21
AGM Batteries - Mike Hohnstein - 07-23-2005, 03:27
AGM Batteries - art bjornestad - 07-23-2005, 04:06
AGM Batteries - scoggins_jim - 07-23-2005, 13:09
AGM Batteries - scoggins_jim - 07-23-2005, 23:26
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