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Author Topic:   Float Charger Recommendation
Yiddil posted 09-26-2007 09:14 PM ET (US)   Profile for Yiddil   Send Email to Yiddil  
I need a recommendation for a float charger to be used for maintaining my batteries over the winter. I need a site, price recommendation, and actual on hands use from anyone who used one of these babies. I am looking for the smallest and cheapest unit for either one or mutiple batteries.

Thanks in advance, Henry

tmann45 posted 09-26-2007 09:41 PM ET (US)     Profile for tmann45  Send Email to tmann45     
I have two Battery Tenders and one Battery Minder, happy with both. The Minder has a pulse conditioning mode that is supposed to break up the lead sulfate crystals; I don't know if it works or not. Both are good chargers and maintainers. I have used both on my dual battery group 24 set up in the Outrage charging both batteries in parallel. $40-50 range.


davej14 posted 09-26-2007 10:46 PM ET (US)     Profile for davej14  Send Email to davej14     
What kind of batteries, flooded cell or AGM?
Chuck Tribolet posted 09-27-2007 09:03 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
Schumacher also makes a good unit. I've got one for the
Montauk and one for the 'vette.


dino54904 posted 09-27-2007 10:48 AM ET (US)     Profile for dino54904  Send Email to dino54904     
I use a duel bank Battery Tender on my 19' Outrage that has two Group 24 batteries. I keep this plugged in whenever the boat is not being used. It works great. I also use a Battery Tender on my motorcycle and on a car I store all winter. A dual bank unit sells for under $100.
Yiddil posted 09-27-2007 09:15 PM ET (US)     Profile for Yiddil  Send Email to Yiddil     
Okay guys, now be more specific...Tender vs minder? Float charger? Please explain...also who makes the best one and give me a make and model number with the prcie please....

Thanks Henry

davej14 posted 09-28-2007 06:50 AM ET (US)     Profile for davej14  Send Email to davej14     

The type of battery you want to maintain makes a difference in the recommendation of a proper charger. This is especially true if you intend to leave it connected to the battery long term. Most marine batteries today are either flooded cell types or AGM. Flooded cells tend to be more forgiving because you can replenish the electrolyte as it evaporates. With an AGM battery, because it is sealed, it is important that the charger is compatible or you will lose electrolyte and damage the battery. On the plus side for the AGM type, they have a very low self discharge rate so they do not need to be charged during significant periods of storage.

jimh posted 09-28-2007 08:48 AM ET (US)     Profile for jimh  Send Email to jimh     
Flooded-cell and valve-regulated lead-acid absorbent glass mat batteries are both lead-acid batteries. The charging for both should be the same. Both will be overcharged by too much voltage, however in a valve-regulated lead-acid battery overcharging can cause undesirable venting to release built up gas. A vented flooded-cell battery when overcharged just releases gas to the atmosphere. Due to the sealed nature of the valve regulated design you cannot refill the lost electrolyte.

kamie posted 10-03-2007 08:56 PM ET (US)     Profile for kamie  Send Email to kamie     
Your making this way too hard. Go to Walmart and buy a battery charger, should be 30 to 40 dollars, max. When your done with the boat for the season unhook everything from the battery and leave the battery on the boat. In the spring pull out the charger and charge the battery up full, then hook everything back up to it and tighten nice and tight. Add water and start your engines.

This has worked every year with the exception of one when I did not unhook everything from the battery. Other years, a quick charge to bring the battery up to full power and ready to go.

If you do take the battery out of the boat, don't store it sitting on concrete. At least that is what I have been told.

davej14 posted 10-04-2007 08:08 AM ET (US)     Profile for davej14  Send Email to davej14     
Of course a flooded cell and an AGM battery are both lead acid batteries. The reason for the question was to determine what type of charger is necessary. If you are going to leave a charger connected continuously to a sealed battery you need to be much more careful about the float voltage or you will permanently lose electrolyte. Since the original question indicated that the charger would be connected "over the winter" an "el-cheapo" charger would not be recommended in the case of a valve regulated battery.

A standard flooded cell battery should be charged once a month over the winter. An AGM battery should go the winter season without needing a charge.

Regarding storage on concrete, this is an "old wives" tale.

Yiddil posted 10-07-2007 11:02 PM ET (US)     Profile for Yiddil  Send Email to Yiddil     
Okay, So I have taken my battery out of Das BOat every year since I have had her and never have I had to recharge her, just install and go for a ride in Das BOat come the end of March.

My question dealt not with CHarging the battery alone Kamie, It had to do with float chargers for my battery and which one I should use to keep it charging from lets say Jan-Mar....I have seen cheap float chargers that seem to fit the bill but was wondering what float chargers people would recommend...

This is still my original question.........and Im still looking for people answers...

"I need a recommendation for a float charger to be used for maintaining my batteries over the winter. I need a site, price recommendation, and actual on hands use from anyone who used one of these babies. I am looking for the smallest and cheapest unit for either one or mutiple batteries".

Just seems like a prodent thing to do to maintain ones batteries...and im looking at multiple batteries for three boats...Not a big deal to do it the way Ive been doping it...but I thought the float charger was another option to investigate...still looking to get some feedback on this possible option...

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