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Author Topic: Let's talk batteries  (Read 1220 times)

Offline rasbo

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Let's talk batteries
« on: February 28, 2021, 05:51:55 AM »
Ok ,my ulltera has arrived,what batteries are you guys using? It's a 24 volt so I'll need two batteries..size? Heck while we're here how about a plug for the motor

Offline CP

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Offline CP

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Re: Let's talk batteries
« Reply #2 on: February 28, 2021, 06:14:06 AM »

Offline RockChuck

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Re: Let's talk batteries
« Reply #3 on: February 28, 2021, 06:42:12 AM »
Those lithium’s are light but spendy!! Are you thinking a wet lead acid or sealed batteries? Depending on space and weight requirements Trojan SCS225 is a good option or a bit bigger and heavier a pair of Trojan T1275

Offline CP

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Re: Let's talk batteries
« Reply #4 on: February 28, 2021, 08:27:43 AM »
Aluminum boat?  There is no way I'd allow a wet lead acid battery on my aluminum boat.


Offline TommyH

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Re: Let's talk batteries
« Reply #5 on: February 28, 2021, 10:25:34 AM »
Aluminum boat?  There is no way I'd allow a wet lead acid battery on my aluminum boat.

Care to expand on this?

Offline Stein

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Re: Let's talk batteries
« Reply #6 on: February 28, 2021, 10:44:19 AM »
Battery acid eats aluminum.  They bounce around all day in the boat and nobody ever looks at them.  The battery can develop pinhole leaks from rubbing or the little plugs at the top can leak or get knocked off and then all of a sudden the water is on the wrong side of the hull.  Sealed batteries are designed for much more abuse, the automotive ones aren't designed to be bounced all around on the water and trailer.

Offline GWP

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Re: Let's talk batteries
« Reply #7 on: February 28, 2021, 10:46:59 AM »
I am using a pair of sealed Interstate 31's now (80lb thrust 24v) but I am seriously looking at building my own lithium pack for a different boat that would end up being used for both boats. The weight of the 31's actually makes the one boat ride better, but will be too much (with the Riptide trolling motor) on the other boat.
The 31's have never run out of juice, though I have run them down pretty low on a very long windy day.

Offline CP

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Re: Let's talk batteries
« Reply #8 on: February 28, 2021, 11:01:18 AM »
Aluminum boat?  There is no way I'd allow a wet lead acid battery on my aluminum boat.

Care to expand on this?

Like Stein posted, battery acid eats aluminum.  I had a StarCraft once upon a time that got a hole eaten through the hull by spilled acid.  And these days there are so many better options; gel, AGM, Lithium, etc.  There is no reason to mess with acid anymore.  I can't count the pairs of jeans and gloves that I've ruined over the years with battery acid. 


Offline GWP

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Re: Let's talk batteries
« Reply #9 on: February 28, 2021, 11:23:06 AM »
Forgot the ‘plug’ part.
COMEGETSOME posted a pic and part number for a plug that looks great.
MKR26 plug.

Offline Blacklab

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Re: Let's talk batteries
« Reply #10 on: February 28, 2021, 01:21:21 PM »
two 27s in parallel. This 12v last all day. They sit in a milk crate at the foot of pass through. Being yours is 24V might lead towards 31s in series. 
Hey! I'm not a complete idiot I have parts missing. Though sometimes I wonder.

If you want to make God laugh tell him your plans.

Offline rasbo

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Re: Let's talk batteries
« Reply #11 on: February 28, 2021, 01:28:33 PM »
Aluminum boat?  There is no way I'd allow a wet lead acid battery on my aluminum boat.
never had a problem in any boat or other rigs,but I do take care of my stuff...

Offline rasbo

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Re: Let's talk batteries
« Reply #12 on: February 28, 2021, 01:31:03 PM »
Those lithium’s are light but spendy!! Are you thinking a wet lead acid or sealed batteries? Depending on space and weight requirements Trojan SCS225 is a good option or a bit bigger and heavier a pair of Trojan T1275
lead most likely, I want the weight up front to see how it works out..if it's to much I might have to sell my wife and grandchildren for lithium  :chuckle:

Offline RockChuck

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Re: Let's talk batteries
« Reply #13 on: February 28, 2021, 03:16:16 PM »
I’d Put them in a good battery box for extra insurance, like said above there is a lot of bouncing in a boat and when it’s on the trailer. Keep the water level correct and you’ll probably be fine, I have used a few different sealed lead acid battery’s and had good luck with AGM but they get expensive also! Odyssey and north star are the 2 that come to mind that I have used.

Offline GWP

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Re: Let's talk batteries
« Reply #14 on: February 28, 2021, 03:28:05 PM »
My starting motor/outboard only batteries have always been lead acid, and I do not remember ever having a sealed one for starting. They have always been in a box and strapped down. Never had an issue with serious corrosion or leaks. You DO have to fill them once in a while, so I know there is evaporation. Just has not been a problem. Mostly aluminum boats.

 


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