[sailnaway]

I have two AGM''S that I love they stay charged and can be turned any way you want but upside down. My cranking battery is led acid group 31 from Sams so when it starts to get weak I will trade it in and it is a marine battery. The system works well I have a switch to isolate all three from the ALT and Charger which is a Xantrex 20+ I also have the remote panel and heat scensor. I can switch the switches to charge the two AGM batteries or the Led acid battery sometimes all at once and I have had no problems yetwith charging the combined banks all set on AGM. I have not charged the batterys all on led acid for fear of overheating. The Cranking battery does nothing but crank so I dont see it as needing much more than the low voltage boost it gets from the AGM type charge. I can however set it to the led acid cook off which will shake the scale that builds up on the plates off. In the five months the system has been working It has not failed once,I ran my Cafamo fans two of them and my lights for two days all but a couple of hoursand by the end of day two my batteries were at 11.75 I was very happy with that test.
The other test was my cranking battery. I left Key west for Tampa and had been doing allot of motoring for three days in the calm water they get down in Conch ville and thought I should charge the battery for the engine since we were crossing some open water. When we arived at our destination I found that the wire to the battery from the ALT had been left undone while doing some other maintanance ( the wites to the AGM''s were still connected). So the battery still had lots of juice reading at 12.45, so it had only used a very small amount of juice in about six days.I will would like to have all three batteries AGM''s but sometimes the pocket has a hole in it where the money falls out, Or is it that the boat just suckes it out hole or not.