Glad to hear the good about the Lifelines. They were OEM in my motorhome, and I opted for 300 AH option. Can't say I'm poster child of deep discharges (frequently 30-40 AH daily due to efficient loads and no cooking loads). Have high hopes for longevity. I have manual two stage solar charger 14.4 volt and 13.2 volt. I charge them at 14.4 until they're drawing about an amp, then float them at 13.2 This seems to be in accordance with Lifeline documentation, perhaps the float could be a tenth volt higher. Lifeline says to equalize as necessary, which I haven't needed for my usage. If Mex thinks I should further tweak this care regimen, I'm all ears.
