Batteries for Upgraded Stereo

[RC_Hinojosa]

The weak link in my current setup are the dual factory batteries...

You guys that are running 2,500+ Watts in audio, what are y'all running in terms of battery setups? Is there benefit from car audio specific batteries?

In addition to extra batteries, is anyone running a digital capacitor?

[MLA]

#saynotocapacitors

Start with how your current batteries are the weak link? This gives you a bass line to start from. If you are wanting to build a house bank for playing while on the hook, you need to get a more realistic idea of what the potential current draw is. Then you need to decide how long you want the system to play.

[beat taco]

I run 2 east penn manufacturing Duracell AGM'S on position 2 and have a third wet cell battery isolated on my switch (position 1) I call the spare tire. 2 years into it with plenty of beach playing I've yet to use the spare tire. My on board charger keeps everything 100, so I've never even switched to 1. 4 amps 3400 watts of conservative rated power.

Sent from my SM-G960U using Tapatalk

[RC_Hinojosa]

#saynotocapacitors

Start with how your current batteries are the weak link? This gives you a bass line to start from. If you are wanting to build a house bank for playing while on the hook, you need to get a more realistic idea of what the potential current draw is. Then you need to decide how long you want the system to play.

So I went out this past weekend and got stranded....this was time mostly spent running. There may have been 10-15 mins where the motor was off but for the most part, the engine was running. Boat showed 14V when the day started and showed 12V near the end of the day when it wouldn't crank.

I'd like to be able to have 60-90 mins of playing time on battery alone, but still make it to the dock at the end of the day.

[kaneboats]

This gives you a bass line to start from.

I get it. "Bass line". Too funny from an audio guy.

[russellsmojo]

So I went out this past weekend and got stranded....this was time mostly spent running. There may have been 10-15 mins where the motor was off but for the most part, the engine was running. Boat showed 14V when the day started and showed 12V near the end of the day when it wouldn't crank.

I'd like to be able to have 60-90 mins of playing time on battery alone, but still make it to the dock at the end of the day.

Stranded, how did that happen with dual batteries? Did you have it on 1 and 2?


Sent from my iPhone using Tapatalk

[RC_Hinojosa]

Did you have it on 1 and 2?

Yep, and I've never run it on 1+2 before, however the installer recommended running that position to get the most out of the amps. Hindsight being 20/20, the alternator couldn't keep both charged and I should've known better.

[russellsmojo]

Yep, and I've never run it on 1+2 before, however the installer recommended running that position to get the most out of the amps. Hindsight being 20/20, the alternator couldn't keep both charged and I should've known better.

Gee thanks installer! That would be a good start to the bad suggestion thread.


Sent from my iPhone using Tapatalk

[BigOrange]

I think you need to check something else out in you system. There was a thread on here sometime last year where the Indmar and/or SC guys piped in and stated that although recommendations in the past was to run off 1 bat while keeping the other in reserve, that they were revising manufacturer's guidelines to recommend running on 1+2.

Now, maybe in your case your system draws enough amps that this logic breaks down.

[MLA]

So I went out this past weekend and got stranded....this was time mostly spent running. There may have been 10-15 mins where the motor was off but for the most part, the engine was running. Boat showed 14V when the day started and showed 12V near the end of the day when it wouldn't crank.

I'd like to be able to have 60-90 mins of playing time on battery alone, but still make it to the dock at the end of the day.

Sounds you have a battery, alternator or user error of the switch issue that I would resolve first. If the system is wired correctly and the switch is used in the most ideal manor, then you should never drain both banks, as thats the reason for having two isolated banks.

A single group-24 deep-cycle will get you 60-90, thats an easy task. Come back when you want 8-10 hours J/K.

Yep, and I've never run it on 1+2 before, however the installer recommended running that position to get the most out of the amps. Hindsight being 20/20, the alternator couldn't keep both charged and I should've known better.

So you operated the boat with the switch in 1+2 and maybe only 15 mins with the engine off? no single battery should be dead in that period, more less 2. Moving forward, I would change how I used the switch. 1 or 2 for anchor, never both.

I still think theres an issue and its not capacity of your batteries. Is that "2500+ watts" your system? Where did that number come from? AC audio wattage does not translate to DC amperage draw.