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Old 07-30-2016, 09:01 PM   #1
Tao
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Batteries: 2013 Internation 19, Interstate SRM-24 both dead

I just took delivery of subject trailer. All is in as new condition EXCEPT both of the batteries are shot. Owner was ill and did not keep them topped off.

I will be keeping this trailer for many years and using in my landscape photography passion. Thus, I want to replace with the best and get as much "juice" out of what I can pack into the allocated box on the trailer tongue.

I am looking at these at Amazon - getting a pair of them.
Will the factory default charger properly charge a gel battery or am I stuck having to rebuilt the whole battery system?

Impressions?
Suggestions appreciated.

Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery
by Optima
4.6 out of 5 stars 183 customer reviews | 51 answered questions
Price: $175.45
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Old 07-30-2016, 10:11 PM   #2
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Quote:
Originally Posted by Tao View Post
I just took delivery of subject trailer. All is in as new condition EXCEPT both of the batteries are shot. Owner was ill and did not keep them topped off.

I will be keeping this trailer for many years and using in my landscape photography passion. Thus, I want to replace with the best and get as much "juice" out of what I can pack into the allocated box on the trailer tongue.

I am looking at these at Amazon - getting a pair of them.
Will the factory default charger properly charge a gel battery or am I stuck having to rebuilt the whole battery system?

Impressions?
Suggestions appreciated.

Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery
by Optima
4.6 out of 5 stars 183 customer reviews | 51 answered questions
Price: $175.45
You can get far more usable amp/hours from the same footprint by using other AGM batteries. I have been installing Lifeline AGMs for 15 years and they have proven themselves in the long run. I would also caution you about buying batteries on-line, as developing a relationship with a local source will far exceed any price savings you get from an on-line purchase in the event that you require warranty service.

And speaking of warranties, I would look at the warranty offered by the battery manufacturer. Lifeline offers a one year full replacement and 5 year pro-rated warranty for RV use.

You can all fit a pair of group 27 batteries into your existing tongue box which will provide you with 200 total amp/hours of battery capacity, of which 100 amp/hours is available for a depth of discharge of 50%

Optima batteries will give you a total of 110 amp/hours and 55 usable at 50%...... just about half of what the Lifelines will give you. There is a reason for their closer price.......half the capacity!!!

Further, if it hasn't already been completed, you should upgrade your power converter to a 'smart' 3-stage unit that will NOT send a continual 13.6VDC into your batteries on shore power. NO battery will properly charge unless they are exposed to a controlled, 3-stage charging regimen!

PS: Optimas, and most other similar types of batteries, including Lifelines, are AGM (Absorbed Glass Mat) and ARE NOT GEL, which is a whole other battery type and are now considered mostly obsolete.
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Old 07-30-2016, 10:36 PM   #3
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Listen to Lewster.

Mike
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Old 07-31-2016, 09:12 AM   #4
Tao
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Lew,

Over the years I've seen many of your posts and grown to respect your guidance.

Initial look at your setup shows it will be an expensive upgrade BUT the time I could spend dry camping for my photography passion and having at least the ceiling fans working would be extended substantially.

So I ask, can you provide the model numbers/part number for both the AGM's AND the charger you suggest? Seems Lifeline has a vast number of parts and models to choose from and I can see it would be easy to get the wrong one to fit in the box on my 2013 International 19'.

On the charger, is it basically a "plug and play" conversion from the existing AS charger?

Jack
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Old 07-31-2016, 02:00 PM   #5
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I use the interstate batteries, stock converter, the batteries last at least 6 years with the water checked twice a year.....
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Old 07-31-2016, 02:38 PM   #6
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I use the interstate batteries, stock converter, the batteries last at least 6 years with the water checked twice a year.....
My stock batteries are going on 4 years old. I keep the unit plugged in 24/7 at the house which is at least 6 months or more.
No problem with the charger nor the batteries. I check them before every trip. I must be lucky I guess.
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Old 07-31-2016, 02:47 PM   #7
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I don't understand the benefit of AGM'S over wet cell batteries when stored outside. My battery box can easily fit two Trojan T105's at 225 amp hour, and maybe even two T145's at 260 amp hours.
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Old 07-31-2016, 02:52 PM   #8
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Amg battery

Sorry to ask or hijack this thread but I have a 2016 classic and would be grateful to know which AMG Lifeline battery and three stage converter will fit my trailer?
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Old 07-31-2016, 03:01 PM   #9
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This is what I did. Similiar outcome. Not hard.

http://currentlywandering.com/2015/0...the-airstream/
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Old 07-31-2016, 05:58 PM   #10
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Okay I see the information on the plug and play 3 stage converter. Can someone provide me with a lifeline battery model I will need?
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Old 07-31-2016, 09:51 PM   #11
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Quote:
Originally Posted by Tao View Post
Lew,

Over the years I've seen many of your posts and grown to respect your guidance.

Initial look at your setup shows it will be an expensive upgrade BUT the time I could spend dry camping for my photography passion and having at least the ceiling fans working would be extended substantially.

So I ask, can you provide the model numbers/part number for both the AGM's AND the charger you suggest? Seems Lifeline has a vast number of parts and models to choose from and I can see it would be easy to get the wrong one to fit in the box on my 2013 International 19'.

On the charger, is it basically a "plug and play" conversion from the existing AS charger?

Jack
Jack,

I owned a 19' Bambi for 6 years.....an '06 International CCD. One of the first things I did to that trailer was replace the batteries with a pair of Lifeline GPL-4CT AGM golf cart batteries at 220 amp/hours @6VDC each, along with a new PD-4655 converter from Progressive Dynamics. These batteries were at 95% when I sold that trailer 6 years later, and they were heavily used over those 6 years. This modification requires that I place a 1-1/2" aluminum riser on the top of the battery box to accommodate the increased height of the golf cart batteries.

The easiest upgrade is to use Lifeline's group 27 size; GPL-27T which are 100 amp/hours each @12VDC. Both of these in parallel will provide you with a battery bank capacity of 200 amp/hours total. Same converter upgrade.

The group 27's will fit in your existing battery box with no modification if you place them 90 to where the originals have been placed, or transverse to the center line of the trailer.

Others may have and good luck with the original converters and Interstate batteries and I don't doubt their experiences, but I can state unequivocally that EVERY solar, inverter or battery upgrade that I do ( 35-40 per year) generally have Interstate batteries that are in poor condition, usually within the first 6 months of receiving the trailer or from the dealer! I'm sitting on 16 dead Interstates at the moment, waiting for the battery recycler to pick them up!!!

Just remember, you definitely get what you pay for when it comes to batteries!!!
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Old 08-01-2016, 05:39 AM   #12
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Lew,

That's the detail I needed. Thank you.

The "easy route" works best for me at this point in time.
With that as a given, a pair of the the GPL-27T's will add about 40 pounds on the tongue of the trailer. Also reduce the 19's carrying capacity.

Does that have a negative consequence of any concern to you?

Does the charger fit in the existing place of the AS default charger or will that require modification?

Thanks!
Jack
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Old 08-01-2016, 09:30 AM   #13
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My tongue weight was increased even more than that as I used the GOL-4CT golf cart batteries. No problems noticed!

The PD-4655 is a direct replacement for your Parallax POS.


Lew Farber
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Old 08-01-2016, 10:49 AM   #14
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Quote:
Originally Posted by lewster View Post
My tongue weight was increased even more than that as I used the GOL-4CT golf cart batteries. No problems noticed!

The PD-4655 is a direct replacement for your Parallax POS.


Lew Farber
Thanks Lew!
FYI and others following this thread.

I have now ordered as followed with source and prices:
Two Lifeline GPL 27T batteries
Source: The Solar Biz
Price: $290.97 each, total $581.94
FREE shipping! UPS ground from factory (freshest stock)

One Progressive Dynamics PD4655V
Source: Amazon
Price: $212.97
Free 2nd day shipping
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