Lithium batteries

[Megastink]

I’m looking to upgrade my two 27g batteries to Lithium batteries for my trolling motor. I’m looking for a tried and true brand. Who has the best value?

[A-Jay]

I've been looking into these as well - 

Can't recommend anything yet but for a G27 - we're looking at something just over 1K a pop. 

https://www.lithiumion-batteries.com/products/12v-80ah-lithium-ion-battery/

 

And since I'm running 4 G31's - 

I may need to wait a bit on this one. 

A-Jay

[Megastink]

I have a 16’ Crestliner that’s I’m trying to save weight on. I found a few solar batteries that are 25lbs ish, but I’m not sure they’ll last against my 24v Maxxum.

 

i can’t spend $1,600 on batteries. 

[NHBull]

They are popular with those living off the grid with big solar systems.

My buddy uses them st his camp and swears that because it has a " green" label on them, it cost  significantly more.

[Further North]

6 hours ago, A-Jay said:

I've been looking into these as well - 

Can't recommend anything yet but for a G27 - we're looking at something just over 1K a pop. 

https://www.lithiumion-batteries.com/products/12v-80ah-lithium-ion-battery/

 

And since I'm running 4 G31's - 

I may need to wait a bit on this one. 

A-Jay

That's where I'm at too.

 

I want to go lithium...but the $$$ don't made sense for me yet.

[A-Jay]

1 hour ago, Further North said:

That's where I'm at too.

 

I want to go lithium...but the $$$ don't made sense for me yet.

Not Yet - 

 And here I thought the Blue Tops were priced pretty steep.

A-Jay

 

 

[slonezp]

7 hours ago, Megastink said:

I have a 16’ Crestliner that’s I’m trying to save weight on. I found a few solar batteries that are 25lbs ish, but I’m not sure they’ll last against my 24v Maxxum.

 

i can’t spend $1,600 on batteries. 

Are you having performance issues? Why are you looking to shed a few pounds?

[Tim Kelly]

10 minutes ago, slonezp said:

Are you having performance issues? Why are you looking to shed a few pounds?

Trying to get on plane on Nockamixon with a 9.9?

[Way2slow]

I'm fairly knowledgeable on batteries, enough so to know the lithium and new technology batteries are the way to go, just not for me.  Buying lithium batteries for my RC planes and helicopters is expensive.  I would have to win the Power Ball lottery to even consider them for my TM.

[Megastink]

1 hour ago, Way2slow said:

I'm fairly knowledgeable on batteries, enough so to know the lithium and new technology batteries are the way to go, just not for me.  Buying lithium batteries for my RC planes and helicopters is expensive.  I would have to win the Power Ball lottery to even consider them for my TM.

W2S, if I can not justify purchasing Lithium Batteries right now, but still want to shed pounds, are there other more affordable, lightweight battery options out there?

 

im just looking for two 12v’s to run my trolling motor. Thanks!

[Way2slow]

AGM's are about the only affordable battery and it's not that much lighter. 

The biggest question is how log and at what power level you plan on using then. 

You van actually put an amp meter in line with your TM and make a log of how many amps, and for how long you use.  When you have what you feel is a fairly good representation of you usage you can get batteries that provide 25% more tha the amount you used.  You want that extra 25% because it damages a battery to discharge it any lower, plus you would be moving very slow by then.

You can actually build you a lithium power pack a lot cheaper than you can buy one.

[Megastink]

2 hours ago, Way2slow said:

You can actually build you a lithium power pack a lot cheaper than you can buy one.

How?

[Way2slow]

Like I said, it's based on your demands. 

Check Hobby King and places like that in China and you can find 6S 45C batteries for $50 or less on sale.  10 of those in parallel would give you approximately 24 volts and a 50Ah battery for $500 That's about all 2 group 24 will give in series when it comes right down to it.

Naturally, you are going to have a few dollars spent on getting them tied together.  Then you have the expense of getting enough charger designed for lithiums. 

Getting everything needed would no be cheap because nothing but lithium based chargers will work.  Also be aware, there have been numbers of houses burned down from lithium batteries.