Dedicated Electronics Battery - Help

[SmallJawSlurp]

Will a new Group 29 lead acid deep cycle battery rated at 122 amp hours fuel a HDS Carbon 12, Elite ti2 12, Echomap 93sv uhd, and a livescope LVS32 GLS10 box??? Battery will be on a 3-bank Minn kota electronic on board charger with my 2 trolling motor batteries. I’m currently running the HDS 12 and Elite ti2 12 on a group 27 with no problems. Please, any input appreciated. 

[MN Fisher]

It'll power that grouping - how long is the question.

 

1: Check the owners manuals for Current Draw in AMPS for each item. Add them all together. This is your Amp usage per hour.

 

2: Now for the battery - if it's an old style (pop tops to add water) then multiply the AH rating by 0.5 - this is your 'effective' AH...draw an old style below 50% charge and you start creating issues.

If it's a Gel or AGM - multiply by 0.65 to get the effective AH

 

Now divide step 2 by step 1 to get the number of hours your battery will run that conglomeration.

 

Note: If you can afford a Lithium - go for it. Lithium's 'effective' AH is 90%-95% of the stated AH.

 

 

[SmallJawSlurp]

14 minutes ago, MN Fisher said:

It'll power that grouping - how long is the question.

 

1: Check the owners manuals for Current Draw in AMPS for each item. Add them all together. This is your Amp usage per hour.

 

2: Now for the battery - if it's an old style (pop tops to add water) then multiply the AH rating by 0.5 - this is your 'effective' AH...draw an old style below 50% charge and you start creating issues.

If it's a Gel or AGM - multiply by 0.65 to get the effective AH

 

Now divide step 2 by step 1 to get the number of hours your battery will run that conglomeration.

 

Note: If you can afford a Lithium - go for it. Lithium's 'effective' AH is 90%-95% of the stated AH.

 

 

I’m not sure my onboard charger supports lithiums? Maybe it does, I’m not sure. Maybe I can find a 30 or 31 AGM battery somewhere.

[MN Fisher]

Upgrade the charger if it doesn't?

 

I went straight to a NOCO Genius for my F-9 - supports old-style, Gel/AGM and Lithium. I'm starting with AGMs because of budget, but can upgrade to Lithium without worrying about the charger.

 

There's also 200ah AGMs out there.

[SmallJawSlurp]

4 minutes ago, MN Fisher said:

Upgrade the charger if it doesn't?

 

I went straight to a NOCO Genius for my F-9 - supports old-style, Gel/AGM and Lithium. I'm starting with AGMs because of budget, but can upgrade to Lithium without worrying about the charger.

Could you recommend an AGM or lithium battery specifically for this type of work load?

[MN Fisher]

Any deep-cycle AGM or Lithium will work.

 

In reading reviews, I'm going with Mighty Max for my AGMs, and will probably stay with them for the Lithium upgrade in the future.

 

BPS sells Tracker Lithium batteries, made by ReLion, and they've gotten good reviews.

 

But note that Mighty Max has been in business twice as long as ReLion.

 

If you want USA made - Dakota Lithium is your daddy...almost everyone else, even Mighty Max based in New Jersey, gets their Lithium or the Cells or even the completed batteries from China. Dakota actually uses USA mined Lithium.

[Jig Man]

I am running 2 Humminbird units on an agm battery.  In two years they have killed them grave yard dead.  I have recently switched brands.

[gim]

A deep cycle battery is not intended to be used with electronics.  The intention is to be used with a trolling motor.

 

Select a multi-purpose or cranking battery for the electronics, that is what they are designed for, whether its a standard lead-acid, AGM, or lithium.

[SmallJawSlurp]

1 minute ago, gimruis said:

A deep cycle battery is not intended to be used with electronics.  The intention is to be used with a trolling motor.

 

Select a multi-purpose or cranking battery for the electronics, that is what they are designed for, whether its a standard lead-acid, AGM, or lithium.

Basically, I’m trying to purchase something locally. That’s probably gonna limit me to a lead acid or AGM, I might be able to find a group 31 multi-purpose lead acid battery locally, somewhere. I noticed some of the group 31’s suggest they are “ 95ah at 20 hours,” or “105ah at 20 hours.” Not sure what this means exactly.

[gim]

16 minutes ago, SmallJawSlurp said:

Basically, I’m trying to purchase something locally.

That is a wise idea, especially with batteries.  Should you encounter a problem within the warranty time frame, it would be a lot easier to exchange them locally.

[MN Fisher]

Re: Mighty Max is available through Lowes and Home Depot - deliver to store as they don't keep all models in stock, but returns (if necessary) are to the local store.

[SmallJawSlurp]

18 minutes ago, MN Fisher said:

Re: Mighty Max is available through Lowes and Home Depot - deliver to store as they don't keep all models in stock, but returns (if necessary) are to the local store.

This battery is listed as a Sealed lead acid AGM 30H battery rated at 110ah. Am i in the right ballpark with this battery for the workload I’m looking to cover??

[MN Fisher]

8 minutes ago, SmallJawSlurp said:

This battery is listed as a Sealed lead acid AGM 30H battery rated at 110ah. Am i in the right ballpark with this battery for the workload I’m looking to cover??

That's an AGM battery - Mighty Max only sells AGM, Gel and Lithium - black case is their AGM, blue is Gel, black/white/blue is Lithium.

 

I'd still go through the calculation I posted above - 110ah might be a little overkill for a 'house' battery despite the amount of electronics you plan to run.

[SmallJawSlurp]

12 minutes ago, MN Fisher said:

That's an AGM battery - Mighty Max only sells AGM, Gel and Lithium - black case is their AGM, blue is Gel, black/white/blue is Lithium.

 

I'd still go through the calculation I posted above - 110ah might be a little overkill for a 'house' battery despite the amount of electronics you plan to run.

With the help of google, I’m coming up with for a 12 hours of operation, an amp draw of - Garmin 93sv/Livescope system - 19ah, HDS 12 - 18ah, Elite ti2 - 18ah, for a total of 55ah on a 12 hour day.. So that AGM 30H battery at 110ah x .65 = 71.5ah… 

[Tennessee Boy]

3 hours ago, MN Fisher said:

If you want USA made - Dakota Lithium is your daddy...almost everyone else, even Mighty Max based in New Jersey, gets their Lithium or the Cells or even the completed batteries from China. Dakota actually uses USA mined Lithium.

I would be interested in where you got this information.  Dakota is an American company but I haven’t seen anything suggesting their batteries or cells are made here.

[MN Fisher]

17 minutes ago, SmallJawSlurp said:

With the help of google, I’m coming up with for a 12 hours of operation, an amp draw of - Garmin 93sv/Livescope system - 19ah, HDS 12 - 18ah, Elite ti2 - 18ah, for a total of 55ah on a 12 hour day.. So that AGM 30H battery at 110ah x .65 = 71.5ah… 

I looked at the manual for the HDS-12 and it said 2amps draw - that would be 24ah for 12 hours of operation.

The Garmin manuals have the 93SV pulling 1amp, the Livescope 2-4amps - so thats another 36-60AH for 12 hours there.

 

I'd check the online manuals at the Garmin/Lowrance sites instead of Google.

 

12 minutes ago, Tennessee Boy said:

I would be interested in where you got this information.  Dakota is an American company but I haven’t seen anything suggesting their batteries or cells are made here.

Their website says "The result of a pioneering partnership with a leading research university, we have built our own patented lithium production process."

 

However, another site does say that they're made in China.

 

My oops.

[SmallJawSlurp]

I ended up biting the bullet and ordering a 12v 100ah lithium that has some pretty good reviews. No sense in cheating out now, I guess.

[WRB]

On 4/19/2022 at 3:44 PM, Jig Man said:

I am running 2 Humminbird units on an agm battery.  In two years they have killed them grave yard dead.  I have recently switched brands.

Off topic, check the battery charger, sounds like they were overcharged!

Tom

[Jig Man]

2 hours ago, WRB said:

Off topic, check the battery charger, sounds like they were overcharged!

Tom

I changed but that didn’t help.

[eyedabassman]

Go to Amped Outdoors they have what you need at a good price point!