Secondary battery install for speaker tube. (Dirve2)

[tysontdw]

I currently have my speaker wired to the main battery. My speaker pulls a little power to detect the remote even when the speaker is off. I therefore have a relay to the key switch so it's not pulling any power when the cart key is turned off. When I am driving and playing the speaker I can tell the cart is slower to take off and when parked playing some music the battery is quick to drain.

I would now like to install a secondary battery so it's not interrupting the main operating battery. Ideally, I would like the secondary battery connected in parallel with the main battery / cart generator so it will still charge when driving and I only have to hook up one battery maintainer.

I have some ideas on how to wire/relay it but I am sure this is nothing new for people here.

What is the best way to wire it and where should I install the secondary battery?

[sformal]

You need to be more careful about connecting two batteries together if one is charged and the other is less (which will almost always be the case).

You can have a look at this explanation.

[cgtech]

Since the starter is the charging system, All through the same cable, not sure how that type of battery isolater could be installed.

[brianv512]

This is pretty common in the boating industry. A marine battery switch would work for your needs.

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[BLACK DEATH]

Or just buy the biggest battery that will fit in there and have the most cca and reserve capacity. It’s what I do with no issues on other stuff. 2 batteries can be a waste unless u have the system running all day with the cart off. If you do, I’d still buy the biggest 2nd deep cycle battery for the radio. I don’t know how well the solar powered battery chargers work. It may not re charge enough with a solar powered charger