Replacing Batteries

hamster

Member
Joined
Nov 1, 2007
RO Number
28887
Messages
88
I have a 2005 2665 Regal and no idea if the batteries were ever replaced. We bought the boat in Oct 2007 with 153 hours on it. I looked at the tops of the batteries and there are no month/dates punched out on them. The marina where I bought the boat doesn't have any records of replacement batteries either. So here's the question.....would you replace both batteries or just one next spring? There's 205 hrs on the engine now, if that matters.
 
hours do not matter when it comes to batteries...if lead acid batteries at 3 to 4 years you are getting there but it really depends on a number of things including charger type, usage, etc...

what kind of batteries are they? if traditional lead acid, have you been checkign the water level?
 
Test them with a specific gravity gauge from Auto Zone and see if they even need replacing. Throw a battery charger on them over the winter and see how they do. No sense replacing them until you know if you need to. Right?
 
The batteries are the traditional sealed lead acid types. We don't have a lot of gadgets on board but do run the fridge a lot.
 
Hrs. on the engines don't matter, I always replace both at the same time. I use standard dual use batteries, usually get 5 yrs out of them, but replace both at the first hint of a problem. I have another battery for the genny that is only used with the genny. 2005 boat you're getting close, if I were me and I only had two batteries I think I'd replace them. I'm assuming it's a twin, if it's a single then replacing one would be ok.
 
Ive heard you must always replace the port and then the starboard battery in specific order or an alarm will sound ! LOL for those who didnt see the related post.. this is a joke..
 
If you need to replace them in the spring, I'd replace both at once. The hassle is usually not worth the money you save IMHO.

ND
 
If you look at the side case, there is often a sticker like "E5". E means "5th month or May" and 5 means 2005. That is the date of manufacture, not the install date, but it will give you an idea how old the battery is. The punch out sticker on top is the date sold. The date a manufacture is usually a better guide. If you can't find anything, I would load test them. If they are ok, just watch them closely with SG level check often.
 
Just bare in mind to check the SG accurately you need to charge them and then let them rest with no load or charge on them over night.
 
Thanks for all the comments. It's a single 5.7L engine Regal with two batteries. I'll check the date on the side of the batteries but I think I'll just replace both in the spring to be safe - Joe
 
Do you have anything else that could use the batterys?

I used to have a vehicle which had room for a group 27 battery. The boat, at the time, had 2 such batterys.

I would buy a new battery every year, take the oldest one & put it in the vehicle, keep the ex vehicle as a spare to use for emergency 12V lighting in the house if a hurricane hit.

This way the boat never had a battery onboard more than 2 years old.
 
Veebyes - I really can't use the batteries anywhere else. I replaced the batteries in the cars and tractor last year. I met with the marine manager today to go over the winterization list of "things to do" and basically asked him to have his mechanics check the date code on the batteries and evaluate them to see if they'll be ok for another season. He seemed to think that he replaced them before we bought the boat two seasons ago. In any case, I'd rather replace them and know thatI have good batteries than get stuck somewhere, although I do have two batteries and the chances of both failing is remote. The current batteries are Deka DP24 dual purpose batteries.
 
quote:

Originally posted by hamster

Thanks for all the comments. It's a single 5.7L engine Regal with two batteries. I'll check the date on the side of the batteries but I think I'll just replace both in the spring to be safe - Joe






We wait for one of our batteries to fail. When that happens, they all (4) get replaced. Saves you a hassel on a nice boating day.
 
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