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-   -   mixing battery types - opinions? (http://www.wakeworld.com/forum/showthread.php?t=792982)

TheSqueakyWheel 04-25-2012 8:34 AM

mixing battery types - opinions?
My new boat is coming with 2 cranking batteries.

In the past, I've used a cranking for the engine then a crank/deep cycle hybrid with a Blue Sea add-a-battery isolator for the electronics.

My dealer says that battery types shouldn't be mixed for marine applications - I'm concerned about not having a deep cycle for the electronics.

Opinions? Thanks.

you_da_man 04-25-2012 9:08 AM

Maybe he was referring to not mixing AGM and wet cell batteries...not starting battery vs deep cycle like you're thinking. Most of us use a "cranking" battery for starting and then one or more deep cycle wet cell or AGM batteries for stereo/lighting.

TheSqueakyWheel 04-25-2012 9:11 AM

no, I specifically asked about swapping one of the cranking for a deep cycle type.

Is it ok to have one of each, provided they are of the same type (gel, wet, etc...)?

you_da_man 04-25-2012 9:14 AM

That's what we all pretty much use (especially those who run 6v batteries)...a starting specific battery and then deep cycle for accessories/stereo

you_da_man 04-25-2012 9:22 AM

I'm pretty sure you don't want different size batteries on the same bank if you are using a charger though (like having a group 27 and a group 31 on the same bank powering your stereo).

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