How many batteries do you run

[TrueKaotik]

I'm upgrading to JL8.8 tower x 2 6 mx650 in the boat x 6 and a 12JLW6. I do plan on sitting at the sandbar on occasion and would like to have an extended battery life around 4 hours for music. Should I do 2 upgraded batteries or keep the two stock batteries and add a 3rd? Thank you

Are you Upgrading amplifiers as well? To what if so?

[loc82]

Are you Upgrading amplifiers as well? To what if so?

yes i'll be upgrading those as well. JL M1000/5v2 and JL M600/6

[iamsg9]

Which types of battery

[TrueKaotik]

Run 2 D27 batteries parallel for your house bank and this will give you the run time you seek.

[trayson]

I run 3 batteries. one is a "backup" so I don't get stranded. They are isolated with a perko switch. 2 of them for the "battery 1" setting and the other for the "battery 2" setting.

For simplicity, I have all 3 the same. I got the Walmart Everstart Maxx deep cycle group 29's. They are under $100ea and while I don't "need" a deep cycle for by backup/starting battery, it has enough CCA to start the boat just fine. Each of them is rated with a reserve capacity of 114 minutes.

Sure, I could be running AGM batteries and go with Optima or Oddessey, but for the money, I went with what will do the job and won't break the bank. Cost Effective!



If you don't want to switch out your battery box, you'd probably go with a group 27 instead. They were almost the same price.

[The General]

Has anyone thought about using two 6 volt batteries for the house bank?

[zabooda]

I'd recommend the 2-6 volt battery if you have the space and handle the weight. I have a DD so I don't have a separate battery. I have used that configuration in my motor homes for the last 20 years and the golf cart batteries work best for accessories.

[MLA]

6v golf cart batteries can be a cost effective way to get a lot of Ah. They can take some abuse, but do require frequent maintenance.

[KG's Supra24]

Another 6v user here. 2 6v for house and 1 12v for crank.

[loc82]

Another 6v user here. 2 6v for house and 1 12v for crank.

Since I have the two stock interstate batteries onboard can I run those together in one bank and add two 6V as my house bank? Or would it make more sense to get a third interstate battery and run it in parallel in bank 2 as the house bank.