Re: [Cal_Boats] New Battery Time

I went with the optimas. I got them from Sams Club. They have to be the same size, made at the same time and the same voltage. The AGM are more forgiving when you allow them to run down compared to wet cells. Mine are six months old now. They are 34DMs. They are way smaller than the wet 27s. ISAF offshore regs now require you to replace wet cell with the sealed type. Randy Cal 2-29 Out Pstient Channel Islands Ca Grae Morrison <gr… [at] gtmorrison.net> wrote: The batteries on my 29 are getting on a bit and the monthly winter top up/check is not taking too well so I'm thinking it may be time to swap them out. I currently have group 24 and group 27 wet batteries, does anyone have any experience and/or suggestions on the following points: - AGM or gel - I'm aware of the restrictions in the charging circuit for gel type batteries, so not sure what is to gained by going gel. - is it better to have two batteries the same or different - - sizing? - make? At the moment, I'm thinking of going with two 27 or two 34M Optima AGM's - any reasons not to ? Thanks in advance, Grae 1972 Cal 29 #435 - Destiny Navesink river, Red Bank, NJ