I currently have 4, flooded lead-acid batteries on board my bay boat. Two are dedicated to the T-motor in a 24 V configuration, 1 is primary starting + "house" use and 1 is reserved as back up starting. I have a ProSports 20 Plus onboard battery charger (3 banks). The two starting batteries are connected to a battery isolator/switch and there are secondary alternator outputs connected directly to the reserve cranking battery to keep it topped off. I've attempted to sketch this all out here:
My question is this: after years of wrestling with battery issues related to the t-motor batteries (typically running group 31 units) and reading many positive reviews of the Optima AGM batteries for this application I am considering replacing the 2 trolling motor batteries with blue top optimas. However, my owners manual for the ProSports 20 Plus charger
( details here: http://www.promariner.com/productFea...oductNum=41220
emphatically say not to mix battery types. The charger also has a battery type selector though it seems that the selector mechanism lumps flooded lead acid and AGM together and it's only the gel type that is truly separate.
Will using the Optima AGM batteries for the T-motor power source with flooded lead acid for the starting batteries cause a problem with any of the batteries, charger or other equipment????
Thanks in advance for any help.