![]() Our boat’s AGM batteries were all dual purpose marine batteries, despite their enormous size. Most AGM batteries are actually dual purpose, designed not only to provide long-term power and deep discharging, but also to pack a high cranking power punch that can get an engine started without discharging the battery much at all. Trojan Battery has been at the forefront of battery engineering and technology for decades, and this new AGM version of their ultra popular T-105 6 volt wet cell batteries is a true deep cycle AGM battery, designed to deliver steady power and withstand deep discharging of 50% of the battery’s capacity day after day after day (we plan to discharge them 25%-30% or less each day). The batteries we are installing are their new 6 volt AGM battery called the Trojan Reliant T105-AGM. Our new batteries go into the fifth wheel basement. Much to our surprise, we managed to time this upgrade really well, because Trojan Battery has revamped, redesigned and re-engineered their AGM battery line completely, and their new Reliant AGM batteries have just hit the market in the last month. So we decided to upgrade our RV battery bank to AGM. However, once we started living with higher quality AGM batteries on our sailboat, we found AGM batteries have many advantages over wet cells (our boat had four Mastervolt 4D AGM house batteries and one Mastervolt Group 27 AGM start battery). Wet cell batteries are inexpensive, which is why we chose them at the outset of our RVing life. However, because we had to leave the trailer in storage for stretches of 12 to 20 months at a time when we cruised our sailboat in Mexico, they deteriorated because no one was there to do the routine maintenance they require. These were terrific and served us very well for quite a few years. ![]() Back in 2008 when we first got our fifth wheel trailer, we asked the RV dealership to install four Trojan T-105 6 volt wet cell batteries for us. Since we live on solar and battery power in our RV 100% of the time, having a robust power plant on board makes all the difference. We’re getting new Trojan Reliant T105-AGM batteries! ![]()
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