Lithium?

[Workforfish]

Just bought a new boat has lithium starting battery and 3 acid trolling motor batteries. Can I replace a acid battery with a lithium in a series?
Thanks Jeff

[bobcoy]

Not a good idea in series. Different voltages for one. The imbalance is not good for any of the batteries

[mikeky]

Yes, you can. Maybe not ideal for long term, but it will work.

[CatFan]

Kind a waste of money. Series is like a chain, so you can’t fish longer than the weakest link. Or battery in this case.

[Workforfish]

Kind a waste of money. Series is like a chain, so you can’t fish longer than the weakest link. Or battery in this case.

I have the lithium already I removed it from my old boat before selling it. The boat purchased has lead acid batteries over three years old. I was wanting to put my lithium in the series and replace the other ones later this year.

[MCIPinkie]

First question: Is the boat fishable with the existing batteries? If so, I suggest fishing with them until you can replace all three.

Second: Do you have a suspect battery in the three existing? Might be better off going to Wal-Mart and replacing it rather than sticking a lithium where it doesn't belong.

Third: Have you done your homework on charger capabilities? May be an issue. Potentially serious.

I agree with mikeky. It will work. 12 volts is 12 volts. May not be a good idea, though.

[bobcoy]

13.6 is not 12.6. Not 12 and 12.

[Workforfish]

Thanks. I’m going to use boat as is the charger has settings for lithium and the cranking battery is lithium. I know that the three existing ones are old.

[mikeky]

One pro of using individual 12 volt lithium batteries in series vs one 24 volt lithium or one 36 volt lithium, is if a 12 volt battery fails you can sub a conventional battery until you get a lithium replacement.

Again, maybe not the ideal situation, but you asked if you could use a lithium in place of an acid. The answer is yes.

[billnorman1]

sorry...defect post