Battery Water

[Shayne]

If you haven't been in your boat for a few weeks, make sure your batteries (especially the trolling motor) have plenty of water and are charged.  I learned this the hard way 

[Fish_myster]

Yes you should ALWAYS have the trickle charge on the battery! It will be ready for you everytime!
I use a charger with a automatic shutoff and then trickle charges to maintain.

[slickchilt]

My batteries are sealed and there is not a way to add water. Is this a common battery?

[Bassinkorea]

My batteries are sealed and there is not a way to add water. Is this a common battery?

My batteries are the same, I'd be interested in some answers to that myself 

[mikenestle]

My batteries are sealed and there is not a way to add water. Is this a common battery?

Is it a maintenance free battery?

[Shayne]

I know that there are maintenance free batteries and thought mine were until my dad looked at them and asked when I last checked the water levels

[Creel Limit Zero]

Maintenance free batteries come in a variety of sorts.

Sealed lead cell - basic same set up as a flooded battery - though it is sealed so no maintenance can be done on these.  Not a good battery for extreme deep cell applications, this is good for starting batteries from what I hear, but not for your TM.  Not completely maintenance free, still have to clean corrossion.

AGM - Maintenance free, weighs a good 10-15% heavier then a lead cell battery in the same AMP hour range, but they discharge slower and last longer then well maintained lead cell batteries.  More expensive than lead cell, but makes up for it in life. 

Gel cell - Maintenance free, weighs much less than a lead cell, works great for both starting and deep cell applications.  Much higher cranking amps for starting, and longer life for deep cycle applications, only problem with these is you need special chargers and are expensive.  Supposed to make up for the added expense through life, but I can not vouch since I've never used them. 

Then there is the regular lead cell battery, you will need to do maintenance on these for both water levels and corrossion. 

[tdt91]

Delco Voyager is what I use and you cannot add water. Best batteries I've used. Last set went six years for TM