Optimas don't have to have water added and they last longer too. They can remain charged up for almost an entire year. They are more vibration resistant that other batteries too. And they charge faster than other batteries.
I'm going on my 7 th year using an Optima Blue Top to start my boat and run my electronics. I used another Blue Top Optima to run the trolling motor for 6 years and just replaced it. However it was still holding a good charge and letting me fish all day long after 6 years.
I got my two Optimas back in 2003. I may replace the starting battery next year when it warms back up. But it's still a good battery.
I'm glad that I went with these Optima Gel Type as they are worth the extra money IMHO. They have not failed me in 7 years now. Oh and you can turn them upside down and they won't leak at all.



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