Does anyone know how the battery Pronautic charger is wired in the 330. Mine has three circuit but only wired to two with four batteries? Having issues with house batteries draining to fast if motors not running.
330 battery charger wiring
- Thread starter Ajon
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kirk a
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We don't/won't know how your boat is wired. The manual does a decent job at displaying how it was wired from the Factory. However, my experience has been that people do weird things to boats and especially wiring. My best advice is to pull up the access panel in the transom, and the battery access cabinet, and start tracing wiring. Make a diagram of what you find so you can reference it later.
Last year, I got sick of the stock configuration on my 330 and upgraded to a BEP batter cluster which has made my life much nicer in terms of isolating the house battery from the starting batteries and ensuring everything stays charged. FWIW - the charger on my 330 is a 2 bank charger as the boat was originally configured with a 2 bank set up. I changed it to a 3 bank, and ran the charger wiring to each starting battery, and in turn this flows through the BEP relays to charge the pair of house batteries as required.
Last year, I got sick of the stock configuration on my 330 and upgraded to a BEP batter cluster which has made my life much nicer in terms of isolating the house battery from the starting batteries and ensuring everything stays charged. FWIW - the charger on my 330 is a 2 bank charger as the boat was originally configured with a 2 bank set up. I changed it to a 3 bank, and ran the charger wiring to each starting battery, and in turn this flows through the BEP relays to charge the pair of house batteries as required.
Is this a new problem for you? What does "too fast" mean? Have you load tested the batteries?
However, as stated above, there's really no way for us to tell you. If this is something you want to DIY, then you need to be at least somewhat comfortable with electrical work, to start with. Next, you need to investigate and trace all wires in the system - including charging wires from the battery. ID where everything starts and ends and what batteries are being used for what (most likely, the ones without the battery charger wires are your starting batteries). Check for proper charging voltage at the batteries.
Post back with this info - be specific - and we can likely help more.
However, as stated above, there's really no way for us to tell you. If this is something you want to DIY, then you need to be at least somewhat comfortable with electrical work, to start with. Next, you need to investigate and trace all wires in the system - including charging wires from the battery. ID where everything starts and ends and what batteries are being used for what (most likely, the ones without the battery charger wires are your starting batteries). Check for proper charging voltage at the batteries.
Post back with this info - be specific - and we can likely help more.
Let me rephrase, does anyone know how Grady wires the three set of batteries to two inputs from the charger?
If your boat is wired like my 305 you most likely have 2 battery banks each with 2 batteries wired in parallel. therefore, only 2 banks of your charger are being used. you will need to look at the wiring on your boat to confirm this. wiring can be changed by people over time. That being said if your batteries are older than 3 years and not holding a charge, start by just replacing them first.
Hookup1
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What charger do you have installed now? If it’s not a smart charger I would upgrade.
Your description of draining quickly is not charging it’s probably batteries.
Your description of draining quickly is not charging it’s probably batteries.
kirk a
GreatGrady Captain
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My 2007 330 as it came from the factory had only two banks of batteries, two batteries per bank. The original charger was wired as two outputs to two banks and was an only a two bank charger. If you actually have three banks of batteries, you would require three battery switches whereas originally they were only two.
As we sort of mentioned, it really doesn't matter what was done "X" number of years ago. All that matters is what's done now. Work with what you ACTUALLY have - and that's what we need to know, as well.
Or, look in your manual if you really want to look at that. But, again, all that matters is what's there now.
If you don't want us to help you figure this out, that's fine. And that's not me being sarcastic - just talking openly and honestly. On the other hand, answering our questions will help us help you.
Or, look in your manual if you really want to look at that. But, again, all that matters is what's there now.
If you don't want us to help you figure this out, that's fine. And that's not me being sarcastic - just talking openly and honestly. On the other hand, answering our questions will help us help you.
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download the 2017 manual for the 330. you'll see how it left the factory and then you can take it from there as others have indicted.
Since the batteries are wired as two banks of parallel batteries, a two bank charger is appropriate assuming the batteries in each bank are the same make, model and age.
In the example of the wiring diagram, there are connections that some folks might question. I personally fell that the wiring of the charger banks could be modified for optimal performance.
When two batteries ate wired in parallel, the goal in connecting a charger is to try to make the length of the total charging circuit the same for the negative and the positive leads. Instead of connecting both charger leads to the terminals of a single battery, connect the leads to a terminal on each battery (one neg and one pos) so the each battery gets charged using the same length conductors. The length includes the main parallel jumpers. Rout the charging leads so that each lead has to travel across one jumper.
In the example of the wiring diagram, there are connections that some folks might question. I personally fell that the wiring of the charger banks could be modified for optimal performance.
When two batteries ate wired in parallel, the goal in connecting a charger is to try to make the length of the total charging circuit the same for the negative and the positive leads. Instead of connecting both charger leads to the terminals of a single battery, connect the leads to a terminal on each battery (one neg and one pos) so the each battery gets charged using the same length conductors. The length includes the main parallel jumpers. Rout the charging leads so that each lead has to travel across one jumper.