Battery Recommendation

[Polopaul]

Hi,
I need a battery recommendation for 2 batteries for my LQ horse trailer:
1) Power lighting, stereo, etc. NOT FOR vehicle starting
2) No maintenance needed.
3) At least 75ah
4) Warranty greater than 1 year. 2 or 3 year OK
5) Group 24 or 34
6) Price isn't too much of an issue if it has all the above.

The Universal line of batteries only have a 1 year warranty, the typical car batteries have good price, good warranty but are rated for starting amps, not continuous use.

Thank You,
Paul Jacques

[Soppy]

Find some AGM deep cycle solar batteries. If you keep them fully charged and disconnected when in storage , they will last many years. This battery is from Trojan
SAGM 12 105

[pasdad1]

I would recommend these.


https://lifelinebatteries.com/produc...eries/gpl-31t/

[Persistent]

AGM often labeled "Marine" would be the best value. I have Interstate group 31 batteries. They are each 100 amp hours.

Don't worry about the warranty. One year replacement is the only useful one. The "prorating" systems make multiyear warrenties useless. If you "abuse" them there will be no coverage anyway. If you store them fully charged and dissconnected they will easily last for 10 years. Use a high quality micro processor charger that will not exceed 13.8 volts under any circumstances. (Except Lifeline). For long term trickle charging, voltage should be 13.3 volts. Charging at higher voltage will vent and shorten life.

Lithium phosphate drop-in replacements for lead acid like "Battle Born" would be better if price is no object. They cost a lot, but will outlast the trailer. A proper charging system is required for best performance.

I wish you good luck and happy trails ahead!

[Polopaul]

Hi,

Thanks for all of your responses so far but the batteries both have to be Group 24 or 34. All the batteries you've recommended are 12 inches long, my battery boxes and the outside shelf I put them on will not take that length. Any more ideas?

Thanks,
Paul

[jontpr]

Interstate 6 volt golf cart batteries. Gc2. Two In a series makes 229 amp hours

[deputydog]

You will get lots of replies regarding top $$$ batteries but I've had great luck with Duracell batteries from Sams Club. 3 year free replacement and prices are much less. You can buy two or three (or more) of these for what one of the high priced ones cost.

$102.52 for group 34 maintenance free with 3 year free replacement

[Polopaul]

Hi Everyone,

Thanks for the great recommendations. I m trying to stay away from maintenance batteries. I've been looking at Universal Power Group UB12750 45821 12V 75AH GRP 24 Deep Cycle batteries. Yeah they aren't cheap but AGM batteries, if taken care of, last much longer than the wet cells. The trailer is not used a lot and AGM's hold a charge longer. I would put a battery tender on them which only charges the batteries if the voltage drops. I could keep them charged from the solar panels BUT that would subject them to constant charging, which equates to heat. The Interstate batteries and the Costco batteries require maintenance. Any thoughts?
Thanks,
Paul

[Winemaker2]

Originally Posted by deputydog

You will get lots of replies regarding top $$$ batteries but I've had great luck with Duracell batteries from Sams Club. 3 year free replacement and prices are much less. You can buy two or three (or more) of these for what one of the high priced ones cost.

$102.52 for group 34 maintenance free with 3 year free replacement

I agree completely.
Sam's Club AGMs made in USA by East Penn.
I have confirmed with East Penn that for AGMs different sizes (GC2, GP31...) use the same plate design and have the same starting and deep cycle capability. Just look at the specs and you will see they spec both AH and CCA.
I have had 3 East Penn 8D AGMs in our boat for 6 yrs and just replaced 8 GC2s in MH. I also use maintainers for MH storage but dont have that ability for winter storage of boat. After 6 mos I typically read 12.5 - 12.6 V on my AGMs.
Compare $/AH when shopping!

[Persistent]

I don't know the specific dimensions of a group 34 battery, but they are large. You have me confused. I have group 31 AGM's. They require a longer battery box than the standard boxes that usually come with small travel trailers.

Batteries come in different capacities and chemistries. The same capacity and chemistry comes in different shapes. You could first pick the capacity you need and then choose a size (group). Or, you could measure the space and fit the most capacity you can get into that space.

Can you post a picture of where you plan to install the batteries and measure dimensions of the space?

[garywilson]

Group 34 Batteries Physical Dimensions
BCI group 34 batteries physical dimensions are (L x W x H) 10.25 x 6.8125 x 7.875 inches (26 x 17.3 x 20 cm).

Group Size LxWxH (inches) LxWxH (cm)
Group 24 Batteries 10.25 x 6.8125 x 8.875 26 x 17.3 x 22.5
Group 27 Batteries 12.0625 x 6.8125 x 8.875 30.6 x 17.3 x 22.5
Group 31 Batteries 13 x 6.8125 x 9.4375 33 x 17.3 x 24
Group 34 Batteries 10.25 x 6.8125 x 7.875 26 x 17.3 x 20
Group 35 Batteries 9.0625 x 6.875 x 8.875 23 x 17.5 x 22.5
Group 51 and 51R Batteries 9.374 x 5.0625 x 8.8125 23.8 x 12.9 x 22.3
Group 65 Batteries 12.0625 x 7.5 x 7.5625 30.6 x 19 x 19.2
Group 78 Batteries 10.25 x 7.0625 x 7.6875 26 x 17.9 x 19.6