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mattmx181    1

Hey guys,

I am not knowledgeable when it comes to stereo systems or what batteries to run. I currently run 6 Wetsounds SW-65 Interior Speakers, 4 Rev 10 Tower speakers off of a single amp (possibly going to split the pair and add a second amp to the tower speakers), i run a Wetsounds 12" Sub with its separate amp and I currently run 2 batteries in the boat. Over memorial day I am now jealous of the boats that don't have to shut their system off after draining their stereo battery fairly early in the day. My question to you guys is how many additional batteries do you feel I should run along with what brand and model? Thank you in advance

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Wylie_Tunes    139

Just to confirm, the boat has a dual bank setup with a main battery switch, correct? 

You will want to build the house bank with brand new batteries of same type, size and group, and NOT add/wire on to the existing house battery. This is important for life span and battery health. 

IMO, the best bang for the buck is a pair of 6V golf cart batteries. Still hard to say whether you need 2 or 4, need a little more info about the amps, plus account for another amp, yet to be determined. 

Next, charging. With a large house bank, you have to rely heavily on shore charging, and not on the alternator. You are easily looking at a 30A charger, maybe 40A even. 

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mattmx181    1

Hey thank you for the response I haven't been in any cell or internet range since I posted that forum... So I called my local stereo shop and their just going to handle everything since I don't want to screw anything up after reading your response! However I am looking for any recommendation for a high amp multiple bank charger since you said would require 30 to 40 amps.... I run a Genius smart charger 4 bank which is 4.4 amps... 1.1 amps per bank which tops off my 2 batteries overnight... but their running off the alternator when the boat is on so they have some juice when I pull the boat out for the night so I understand that I need a lot stronger charger if i'm running those batteries all the way down and unable to rely on the alternator and expecting them to be fully charged for the next day... I'll have a total of 4 batteries Thank You

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Wylie_Tunes    139

The Genius GEN4 is a 4 bank 40A and would give you 10A to each bank. 

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Jlagos    12

Look at the website for noco https://no.co They have 15% off code if you provide your email it'll save over $50. The genius are great in they`re ability to help prevent /reverse sulphation. Best, however to try and keep the batteries topped up when your done for weekend.

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Cameron    5

Please excuse any dumb questions i may be about to ask as i have no knowledge about this.

Ive got a 2017 S238.

I hate how when i shut the engine off the stereo shuts off and i need to turn it to acc. to get it back on.

Does this happen in all the boats or do i have my bank/master switch turned to the wrong setting or what?

Is this the problem that Matt is trying to fix?

Would switching the off and acc. wires on the back of the ignition fix this? so that it goes from left to right... off/acc/on?

Thanks in advance.

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Just wire your switch for stereo hot with battery switch on.... simple wire swap under dash

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rrd525    40

Yes, just swap the little jumper wires on the stereo switch. One of the first things we did.

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Cameron    5
24 minutes ago, lake dweller said:

Just wire your switch for stereo hot with battery switch on.... simple wire swap under dash

So this would cause the stereo switch to no longer be useful? (which is fine)

By battery switch on, do you mean the key being turned to on?

2 minutes ago, rrd525 said:

Yes, just swap the little jumper wires on the stereo switch. One of the first things we did.

Have you drained your batteries at all by doing this?

Are you able to go a bit more in depth with what you mean by jumper wires?

And where I am swapping them to?

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You won't drain your batteries unless you leave both perko switch and toggle for radio on. Just find hot with ign. off and perko on and tie into that for rocker switch.

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Cameron    5
4 hours ago, lake dweller said:

You won't drain your batteries unless you leave both perko switch and toggle for radio on. Just find hot with ign. off and perko on and tie into that for rocker switch.

Awesome i will try that thanks.

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