theoldwizard1 wrote:
KD4UPL wrote:
If you got 7 and 10 years out of your current batteries I wouldn't change a thing. That is incredible service life.
I have to agree !
I am a big fan of 6V golf cart batteries for non-starting applications. A pair of flooded 6V golf cart would cost less than a pair of "dual purpose" batteries and provide much more energy storage.
Unfortunately, the only TRUE deep discharge AGM golf cart batteries I have been able to locates are made by Trojan (T105-AGM). You would have to order then through a golf cart distributor or solar power store and they would cost 200%-300% more than what you would pay for a golf cart battery at Costco or Sams Club.
I believe that the AGMs made by Eastern Penn Mfg. are true deep cycle AGMs. I don't know that much about AGMs, but their 6v flooded GC batteries seem to be right with Trojan. Eastern Penn is the nations largest lead acid battery maker.
https://www.eastpennmanufacturing.com/wp-content/uploads/Intimidator-Deep-Cycle-Flyer-1740.pdf