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3 Reviews
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4 star:
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3 star:    (0)
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6 of 9 people found the following review helpful:
4.0 out of 5 stars Good Investment, April 2, 2008
Amazon Verified Purchase(What's this?)
This review is from: Optima Batteries 8051-160 D31A YellowTop Dual Purpose Battery (Misc.)
I bought this as storage for my solar panels. I have 85 watts total and this battery holds the charge well.
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4.0 out of 5 stars Good deal, great battery., February 2, 2012
Amazon Verified Purchase(What's this?)
This review is from: Optima Batteries 8051-160 D31A YellowTop Dual Purpose Battery (Misc.)
My battery arrived in a reasonable amount of time, well packaged, and in good condition. It has worked well for me. I'd recommend it to anyone.
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5.0 out of 5 stars blue and yellow tops the same inside, October 16, 2011
Amazon Verified Purchase(What's this?)
This review is from: Optima Batteries 8051-160 D31A YellowTop Dual Purpose Battery (Misc.)
i've been using the d31 blue top for a long time now and noticed the price on the yellow top dropped. Optima says the blue is for deep cycle trolling motor use while yellow is for deep cycle and starting use - however I have it on good authority from optima that the d31m marine battery is the same inside both the blue and yellow tops, so if the yellow is cheaper today, I'll buy it instead!
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