Optima AGM batteries...Which one? - Page 2 - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-18-2013, 01:43 PM   #15
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,063
Quote:
Originally Posted by Jared J View Post
I stuck a Walmart battery in, went for six years. ........... I threw a cheap parts store battery in it in 2006, still works.
Six years out of a Walmart battery.......maybe you're working too much Raz
__________________

__________________
Raz is offline   Reply With Quote
Old 05-18-2013, 04:12 PM   #16
Senior Member
 
Francesca Knowles's Avatar
 
Name: Francesca Knowles
Trailer: '78 Trillium 4500
Jefferson County, Washington State, U.S.A.
Posts: 4,543
Registry
Quote:
Originally Posted by Jared J View Post
I used to run optimas. The old ones worked great for years. The newer ones…well, I ran through 3 of them in 4 years. I stuck a Walmart battery in, went for six years. Another had exide orbitals, killed 2 of them in. 2 years. I threw a cheap parts store battery in it in 2006, still works.

I used to like optimas, now I wouldn't touch them.
I saw an interesting paper on longevity problems with AGM (and other VRLA) batteries...I guess it's been sort of a mystery for some time why many evidently aren't living up to the expectations raised by the success of the early prototypes. The author of the paper posits that the use of recycled instead of virgin lead is at the root of the problem...it seems that the developers of the type used virgin ore more or less by chance and until recently no one realized that the distinction is important.

Technochild that I am, I may be interpreting the paper incorrectly, so herewith a link to same in case others more savvy than I may find it interesting/useful:
Lead Purity: VRLA Problems

Francesca
__________________

__________________
.................................
Propane Facts vs. Fiction:. Click here
Tow Limit Calculator: Click here
Francesca Knowles is offline   Reply With Quote
Old 05-18-2013, 04:19 PM   #17
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,308
Registry
Quote:
Originally Posted by P. Raz View Post
I bought the Lifeline GPL 24 T when the battery on our first trailer died in 3 years. I'm still using it. It was a little over $200 or almost 3x the Walmart battery price at the time (2007). They claim up to 1000 charge/discharge cycles. We camp less than 50 days/year and use about 5-10 Ahr a night. LED lights. A small fan I modified to use less about 1/2 amp and the water pump. Because of parasitic loads, I noticed any time I connected the battery, there was a small spark. The sealed battery is safer in my opinion. If I break even I'll be happy. It's about the closest I come to gambling. Raz


Lifeline Batteries - Marine & RV Deep Cycle Batteries
I noticed that small spark too on my trailer. I believe it's caused by the Propane Detector which is full time powered from the house battery.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is offline   Reply With Quote
Old 05-18-2013, 05:32 PM   #18
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,063
Quote:
Originally Posted by Byron Kinnaman View Post
I noticed that small spark too on my trailer. I believe it's caused by the Propane Detector which is full time powered from the house battery.
I agree. I measured about 35 mA on mine. No such thing as off anymore. That's one reason I put the inline fuse in. It's an easy disconnect with the spark enclosed.
__________________
Raz is offline   Reply With Quote
Old 05-18-2013, 06:33 PM   #19
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,308
Registry
Quote:
Originally Posted by P. Raz View Post
I agree. I measured about 35 mA on mine. No such thing as off anymore. That's one reason I put the inline fuse in. It's an easy disconnect with the spark enclosed.

I think the inline fuse is a good thing. My Scamp came from the factory with a 20 amp fuse inline with the positive lead at the battery. After about 6 years it became corroded and I need to replace the holder and the fuse. Point is it's a good thing but is another failure point.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is offline   Reply With Quote
Old 05-20-2013, 10:03 PM   #20
Senior Member
 
accrete's Avatar
 
Name: Thom
Trailer: Chevy AWD Van Conversion
Astoria Oregon
Posts: 1,015
Registry
Greetings,

My only experience with an AGM over time is a Lifeline AGM i had in my HAM Shack that lasted about 8 years without any maintenance except proper maintaining with an appropriate AC charger.

Now with our Parkliner #35 and the stock placement of two Optima Blue Top 34 batteries...if i knew then (when ordering) what i know now... I would have paid the extra $$ for the 27 battery with 10 more AH and a built in vent to attach a small tube to vent to outside from their placement in the under-bench battery compartment. Hindsight. While i do expect to get many good years of use out of the 34's, i will probably swap out for 27's when the time comes just cuz.

No maintenance AGMs is my preference. I have two 6v wet cells in our 38' fiver and they need watching and usually only get three to four years out of a pair.
__________________
Blogging from the WET! Coast of Oregon
Bed, Bath, & Beyond...
2010 Chevy Express 1500 AWD Van
Archive: Parkliner #35 build thread
accrete is offline   Reply With Quote
Old 05-21-2013, 06:43 PM   #21
Senior Member
 
MCDenny's Avatar
 
Name: Denny
Trailer: Lil Snoozy
Michigan
Posts: 551
If you want the benefits and cost of an AGM battery I'd go with Concorde Lifeline. About $250 shipped to your door. Lots of size choices. Very low self discharge, much lower than a wet cell, important if you leave your trailer unplugged for months at a time. More tolerant of deep discharge but that's not good for any battery. Good if your battery is hard to get at so you will forget to check the water.

Get a good three stage battery charger with at least C/10 output, i.e. an 80 ah battery wants at least 8 amps during the bulk charge phase.

Estimate your battery usage in a day, for each device, amps x hours turned on, add up for a 24 hr period. Then times number of days between charging opportunity, then times 2. That's the battery capacity you need.

If you are running 120v motors (like a fridge compressor) with an inverter you need to pay special attention to start up loads. Basically you will need more battery in that case.

I use AGMs in my electric boat because watering would be a huge pain and rocking might cause acid to leak out. I use 2 Trojan T105 6v wet batteries in series in my lil'snoozy.
__________________

__________________
MCDenny is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Parkliner Electrical System & AGM Battery Charging-Maintaining accrete Electrical | Charging, Systems, Solar and Generators 15 05-16-2013 07:03 PM
AGM Battery ? jck Care and Feeding of Molded Fiberglass Trailers 29 12-28-2012 04:46 PM
Got a 2nd battery, AGM, 2 questions?! dylanear Modifications, Alterations and Updates 13 07-28-2012 03:47 PM
Optima Batteries George Cathcart Problem Solving | Owners Helping Owners 3 07-20-2009 12:21 AM
Interior mounting of Optima batteries... Ken Vernon Problem Solving | Owners Helping Owners 16 10-20-2008 05:31 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:57 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.