Electrical Systems, Charging and Solar Electrical components and wiring, batteries, charging systems, generators and solar topics.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-21-2017, 06:48 PM   #1
Senior Member
 
Join Date: Jul 2017
Location: Adrian, Mi.
Posts: 102
Default Latest thinking on new battery

New Owner and in desperate need of a new battery. What is the current thinking? Group 24, 27, 31 single or dual. Flooded or AGM. Brand???

I am not interested in modding the battery box. Last battery I purchased ( for my previous rig)was a group 31 which replaced a group 27 and that replaced a group 24 that came with the trailer new. The 24 was minimal at best.

First question will a group 31 fit in the box? ( they are a little taller than a 27)

Will two 27 fit?


Down the road I am planning on adding solar.

Thanks in advance.
__________________

Bravada is offline   Reply With Quote
Old 07-21-2017, 06:55 PM   #2
Member
 
Join Date: Jul 2017
Location: Waco Georgia
Posts: 78
Default

I would guess it would depend on your battery location. mine being a 1980 only had a regular plastic battery box from like walmart attached to the frame behind the propane tanks so it's whatever will fit inside of it. w.o doing any mods.

I seen later models that had the battery mounted lower and has a cover over it.
__________________

Epoweredrc is offline   Reply With Quote
Old 07-21-2017, 11:21 PM   #3
Senior Member
 
JackandJanet's Avatar
 
Join Date: Jul 2010
Location: Pine, AZ
Posts: 2,500
Default

I suspect the largest battery that MAY fit is Group 27. My trailer will only take Group 24 however, but I was able to install two of them in parallel for double the capacity.

Measure your battery box carefully to see what will go in there. IF you can get two in, do it and install the largest battery that will fit.

The only kind of battery I'd consider would be a "deep cycle/marine" FLOODED type. Look for one with the highest Amp Hour capacity you can find. No battery really likes being deep cycled though, so try to keep the charge at or above 75%. If you pay extra for AGM or the other "fancy" ones, you're just throwing money away in my opinion. They really will not last any longer and can cost up to twice as much.

I buy my batteries at Costco, because they have good power ratings, a reasonable warranty, no hassle return policy and are sold at a good price.

If you DO move ahead with your plans to install solar, please look at the thread I posted on my solar installation: My New 200 Watt Solar Installation It's now a 300 Watt installation because I added a third panel between the two that I originally installed. There was room for it and it was easy to connect it in series with the other two. On my last trip, in full sun, I measured 14.5 Amps charging current right after driving and setting up camp. Again, the tape is holding perfectly and I've never used my generator since installing the panels.

- Jack
__________________
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew
JackandJanet is offline   Reply With Quote
Old 07-22-2017, 12:18 AM   #4
Senior Member
 
hilltool's Avatar
 
Join Date: Feb 2012
Location: Wisconsin
Posts: 1,109
Default

I'm able to fit two group 27s. It's a bit Tight but they go in.

Rick
__________________
2201 TL

2010 Nissan Titan king cab SE
4x4
hilltool is offline   Reply With Quote
Old 07-22-2017, 03:49 AM   #5
Senior Member
 
Join Date: Jul 2017
Location: Adrian, Mi.
Posts: 102
Default

I have a 2001 Tow Lite 26TFB. The battery box is on the tongue behind twin propane tanks between and level with the top of the frame rails. It does appear that two group 27s will fit. I haven't done any measurements yet and would like to fit twin 31's. ( I think it's wishful thinking).

With the new battery chemistry and advancements it makes sense to review these options. Looking into Interstate's ECL Professional group 24 and 27. It is discontinued now so at best if I found a pair they probably be old stock.
Bravada is offline   Reply With Quote
Old 07-22-2017, 07:53 AM   #6
Senior Member
 
Treeclimber's Avatar
 
Join Date: Feb 2015
Location: SWFL Bonita Springs
Posts: 674
Default

I went with two 24's for fit. My local Rural King has the AGM for the same price as flooded elsewhere and I used to constantly check the batts fluid levels. Now I don't worry as much. Second reason for fit is I remember reading a long time ago about an owner leaving something on the cover, lowered the top and shorted the batt causing a fire, I think. With these two batts installed, I had enough room to place 3" Styrofoam block so my diamond plate won't short. Also notice on the side of one batt is my Battery Minder. Keeps me fully charged with NO damage to the batts.
Inside I have a small dehydrator, here in Fla this time of year we have a LOT of humidity. I used to used this pure water to top off the Batts, now I use that water for the flowers!
Tree
Attached Images
File Type: jpg batt.jpg (200.0 KB, 3 views)
__________________
Treeclimber


2703 Tow Lite
2002 Escalade
Bonita Springs, Fl.
Treeclimber is offline   Reply With Quote
Old 07-22-2017, 10:11 AM   #7
Senior Member
 
hilltool's Avatar
 
Join Date: Feb 2012
Location: Wisconsin
Posts: 1,109
Default

" I remember reading a long time ago about an owner leaving something on the cover, lowered the top and shorted the batt causing a fire, I think. With these two batts installed, I had enough room to place 3" Styrofoam block so my diamond plate won't short. "

That may of been me, Tree.

That said- I have read that the AGM batteries require a bit lower voltage than standard wet cell batteries for the initial charge. Something like 14.4 volts for wet and 14.1 for AGM and gel cells. However, even my standard batteries, according to the same source, should be getting better than 14 for the appropriate gassing to take place and re-charge and I never see more than about 13.6 on my volt meter when hooked up to the converter. Thus- I suspect I haven't been doing my batteries any favors the last couple of years charging them with the standard converter/charger on my 2001 hi-lo. I have considered replacing it....... but haven't felt like springing for the extra dollars. maybe i will when these peter out.

Rick
__________________
2201 TL

2010 Nissan Titan king cab SE
4x4
hilltool is offline   Reply With Quote
Old 07-22-2017, 11:05 AM   #8
Senior Member
 
JackandJanet's Avatar
 
Join Date: Jul 2010
Location: Pine, AZ
Posts: 2,500
Default

My BatteryMinder battery maintainer has different settings for the different kinds of batteries. It also has temperature compensation.

I've covered ALL of the battery posts and connectors with non-conductive covers. Never have to worry about shorts in there.

- Jack
JackandJanet is offline   Reply With Quote
Old 07-23-2017, 09:16 AM   #9
Member
 
Join Date: Jul 2017
Location: Upstate South Carolina
Posts: 49
Default

RE: the 1999 21 footer I bought 10 almost 2 weeks ago- I have the same "battery box is on the tongue behind twin propane tanks between and level with the top of the frame rails. It does appear that two group 27s will fit" that Bravada describes. Presently there's a single older Autocraft Gold 65-2 1000 a cranking and 150A reserve capacity. Not even a deep cycle battery. It's charging and holding about 1`2.4 V, but I'll want to be replacing it soon. I'm interested in hearing how the dual batteries work out.
PROBLEM- The plastic batter box is cracked and needs to be repaired before a heavier or maybe even the present battery will falls through. What should I use to repair the battery box cracks?
__________________
Doug Allen
Inman, SC
2017 Nissan Frontier and
1999 21' Hi Lo TowLite
Doug Allen is offline   Reply With Quote
Old 07-23-2017, 01:38 PM   #10
Senior Member
 
JackandJanet's Avatar
 
Join Date: Jul 2010
Location: Pine, AZ
Posts: 2,500
Default

My battery box has a metal strap underneath to help support the battery weight. You could always add that. I personally would not trust just a cracked plastic repair job.

As far as batteries go, you don't care about "cranking Amps". That's the very high, short duration current draw needed to turn a vehicle engine against compression. What you want to maximize is Reserve Capacity (RC) or Amp Hour (AH) ratings. Two identical batteries wired in parallel effectively double the RC or AH of one. There have been other links to battery facts - Here's one I just found: https://www.batterystuff.com/kb/arti...ry-basics.html

If you DO use two batteries in parallel, it's important that they be as IDENTICAL as possible. That means the same brand, same group size, same type and, the same date of manufacture. (The fresher, the better).

And again, NO battery likes to be "deep cycled". Try to keep your battery(s) at or near full charge at all times.

- Jack
__________________

JackandJanet is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 04:36 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
HiLoTrailerForum.com Copyright 2010