The blue is a starting and a deepcycle. It takes way more discharge cycles than either the red or yellow.
Not quite. The Blue Tops are EXACTLY like a Red Top or Yellow Top. Just depends on which version of the Blue Top you get.
If you get the one with the "D" in the part number, it's basically a deep-cycle Yellow Top with a blue case and Marine terminals.
If you get the non-D version, which is a starting battery, you're basically getting a Red Top in blue livery.
If the main body is Grey, it's a Deep-Cycle. If it's Black it's a starting battery. Blues can be had either way.
The wing nut termanals are perfect for a offroad truck.
Totally agree. Which is why I bought Blue Tops (deep-cycle types) the last time.
My dad had a few yellows for his jeep but they didnt last but a year or two. My blue top i have had for maybe 8 years or more and have charged and discharged a thousand times.
Maybe you got the better batteries. Or, it might just have been the different vehicles under different circumstances.
I don't think you can really compare apples-to-apples directly when two different people with two different vehicles have different results with different batteries.
Not that you can't draw an initial conclusion from it, of course. You just can't count on future results always agreeing with you.
Why the need for a expensive dry cell battery? You mounting it sideways or upsidedown? The interstate i got for my bronco was less than 90 bucks.
Kind of agree, but I still get Optimas and their ilk because, even though I don't mount my batteries sideways, I bounce around and park on side-hills. And also, the only time I've ever had a battery acid spill, was when my alternator overcharged on the freeway and it spewed juice all over my engine compartment.
So for me at least, the extra cost is still usually justified.
And just to clear up a misconception that's still around, the Optimas are neither dry-cell or gel-cell batteries. They're liquid filled lead-acid batteries with chemistry just like (or at least almost like) a standard battery.
It's just that the liquid is held in sealed spiral wound glass mats (like a foam cell maybe?) that keep things very consistent inside the case, and hold the acid safely in suspension.
The top vents are only to allow expansion and contraction of the plastic outer case.
Paul