Concorde Sun Xtender PVX 2580L AGM Solar Battery

I bought these from another website because they had them on sale for nearly half this amount (but not anymore). I have two, in series connected to a couple of small panels/controller at a cabin. I have yet to run the charge below 25.4. I can run stuff on them all day. My normal weekend usage entails a 30" flat screen LED TV we use at night, laptop, cell phone chargers (several), cell phone extender, LED lights, ham radio and various other charges for hand tools and walkie talkies.They are really amazing batteries for off-grid applications. They are however, heavy as heck. At 160 pounds a piece, eat your Wheaties on the delivery date. Nice thing about AGM batteries is that they are basically maintenance free and you don't have to worry about tipping them over and spilling acid. I am so glad to be rid of my lead flooded battery bank.