I have four solar panels, do a lot of dry camping, and wanted to replace my four old flooded lead acid 6 volt Trojan T-105's (450 Amp Hours) with AGM technology so I don't have to be constantly checking and adding water etc. etc. I went with two Renogy AGM12-200 (200 Amp Hours at 10 hr rate, 208 Amp Hours at 20 hr rate = 416 total) which I picked up at Walmart (they even loaded them for me, 129 lbs each) free shipping for $247 each. On the Renogy website they are $399 each !!!!!!!!!!! It will be next week when I dry camp for free up n down the Texas Gulf Coast that I can see how well they perform in comparison.
Take care yall
John T Longgggggggggg retired electrical engineer