I found the brand I was looking for and available in Wynumm. I have not purchased any yet, I will look at it further when I return. They are RITAR RA12-120SD and is a AGM Deep cycle battery with 10 years floating
design life, Like everything else these days, they are made in China, URL:www.ritarpower.com so you can check out their specs.

Best Regards
Barry & Robyn
Tradewinds III SM #171