Hello again
@Andiamo 34. Like with your question about transmission fluid, there is a bit to consider when selecting batteries to store your electric power. MaineSail's website
Marine How To - DIY for Boaters - Marine How To is a terrific resource. It pulls back the curtain on the battery marketing.
I see you found batteries at AutoZone. They are not a manufacturer. They buy their batteries from a manufacturer to meet the price point of their customers. There customers are mostly guys who work on their own cars. Most often used cars that have been driven a lot of miles and need repairs. There battery needs are nothing like the battery needs you have for your boat.
I encourage you to read the link provided by MaineSail above. It will revel much of what has been posted in the replies.
There are a few conditions you need to think about as you consider this issue.
- How long do you need your battery power to last between charges?
- How much power (measured in AmpHours) do you expect the boat to use in a day?
- How good is your recharging system?
- Is your charging system designed compatible with your batteries?
- Are you willing to consume batteries and just buy replacements frequently?
- Will the batteries function with the DC systems you have on your boat?
- How heavy are the batteries?
- Will the batteries fit in the space I have in the boat?
- Did the boat come with enough battery power for my needs?
These are just a few of the questions you need to consider as you decide what compromises you need to make to match your pocketbook and current resources.
I would not purchase either of the batteries offered by AutoZone for my boat. They do not have the proper design or capacity to meet my needs. About the only pro in their favor is they are a cheap price. Cheap price does not equal good value.