Best battery, dollar for dollar...?

a fellow at the battery place where i got my batteries said the deka 9a31 is the same batt as a northstar nsb90. the universal ub121000 gel cells are nice for the money.

 
powermaster Stinger red

kinetic

stinger yellow

optima blue

optima yellow

optima red

in that order

Can all of these be used as the vehicle's primary battery? For instance, I see that Powermaster makes a D2700 and D3100 that look suitable for the main battery, just wanting to make sure.

thanks

 
Mount an extra battery in the trunk. Get a Deka, as mentioned, if you have the cash (around $230) get an Optima.

I have 4 blue tops in my boat, actually thinking about stealing one out of it.

You could also get a big marine rated battery from Walmart for like $70 and use that.

 
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