2001 sea ray 380 sundancer electrical problem with port motor batteries.

[adam mouas]

I recently purchased 01 sea ray 380 sundancer and the 2 port batteries last week. They held a charge for two days and now are completely dead. I'm wondering if there is a charging issue with the batteries. Anyone have any idea's what I should check for?


Thanks,
Adam

 

[superwa]

I have the same boat and same issue last week. It ended up being the charger and I replaced it. Check that you have voltage from the charger to that bank?

 

[Boater420]

Determine how old the batteries are based on the sticker date. If they're lead acid batteries check to see if they're filled with water. If you can't determine their age or they're low on water, it might just be easier to get new batteries so you have a base line.

If they're only a few years old and topped off with water, do what superwa said and start testing the output voltage of your charger. Chargers do go bad, but if your charger tests out OK, then start testing the alternator's voltage output.

Make sure all your connections are corrosion free and tight.

 

[adam mouas]

Very Beautiful boat. Thanks for the reply. Do you know where the charger is located?
I was thinking maybe the charger but then I was thinking that the starboard batteries wouldn't get charged either?

Thanks,

 

[Little Ducky]

Very Beautiful boat. Thanks for the reply. Do you know where the charger is located?
I was thinking maybe the charger but then I was thinking that the starboard batteries wouldn't get charged either?

Thanks,

When looking at the batteries ...... follow the little wires that are attached. Should take you right to the charger.

 

[adam mouas]

Tested the charger. It seems to be charging fine. The blinking light indicates low charge. I'm going to call the charging factory tomorrow. Maybe they can walk me through it.

 

[Boater420]

If the charger is indicating a low charge, it's time to pull the batteries and take them to an auto parts store. Have them load tested. If they're bad, buy new batteries. It'll be easy since you already have the cores there with you. If they're good, you know there's something wrong elsewhere.

Since this is a new to you boat there's going to be issues like this popping up from time to time. With things like batteries, pumps, risers & manifolds, it's always best to just replace them and start from scratch since you're dealing with a 17 year old boat.

Unless you received a detailed list of maintenance items the previous owner completed, you're going to have to make your own list and start with new parts to establish a baseline. This way you know when the items were last replaced and can make more informed deductions when dealing with issues like this in the future.