is one 12 volt grp 31 battery enough for me

[dave17352]

Well here is the deal. I at this time unfortunately only have the chance to go out a few times a year. Previously we were able to go on much longer more frequent trips. I have a 2000 watt inverter in my 5th wheel. It was put there to run my cheap Hair 10 cubic foot fridge while on the road and overnight. I have a generator so it can be charged up at anytime. I want to buy just one good 12 volt battery to run that fridge if possible. Like I say being used just a few times a year. I also want to switch it back and forth to my TC. So what do you guys think would just one 12 volt do the trick. This battery is wired right next to the inverter with the proper gigantor gauge wire. As you can see I am not a electricity guro but I know at the time I set it up with the proper gauge wire, thanks to this forum.

thanks

[GordonThree]

dave17352 wrote:

GordonThree wrote:
If money's no object, check out ReLiON. Their G31 case is a 100 amp-hour Lithium Iron Phosphate battery, and you get to use all 100 amps, none of this 50 percent bs like lead acid. You get thousands of cycles out of it, vs only 100s from lead acid. Plus it only weighs 30 lbs!

http://shop.relionbattery.com/collections/12v/products/12v100ah

I checked them out just for fun. That technology is way out of my reach for a while. All though I am sure those prices will come down with time.

Me too. I'd love to replace my 4x lead G31 with one of the 200 amp 8D batteries, but at 10x the cost, it's not happening. The total cost of over the life of the battery isn't too bad though, you get double the capacity and easily 4x the lifespan... If they can make it into mass production instead of hand-building each one, the price should drop a lot.

[dave17352]

GordonThree wrote:
If money's no object, check out ReLiON. Their G31 case is a 100 amp-hour Lithium Iron Phosphate battery, and you get to use all 100 amps, none of this 50 percent bs like lead acid. You get thousands of cycles out of it, vs only 100s from lead acid. Plus it only weighs 30 lbs!

http://shop.relionbattery.com/collections/12v/products/12v100ah

I checked them out just for fun. That technology is way out of my reach for a while. All though I am sure those prices will come down with time.

[GordonThree]

If money's no object, check out ReLiON. Their G31 case is a 100 amp-hour Lithium Iron Phosphate battery, and you get to use all 100 amps, none of this 50 percent bs like lead acid. You get thousands of cycles out of it, vs only 100s from lead acid. Plus it only weighs 30 lbs!

http://shop.relionbattery.com/collections/12v/products/12v100ah

[Sandia_Man]

The fact you have the Honda 3K genny and don't mind cranking her up (multiple times daily) to recharge your grp31 of course it will work. Having a capable smart charging converter will help reduce overall gen runtime. While on the road your alternator will help keep the battery somewhat charged, not knowing your fridge draw battery could be down a bit upon arrival.

If you are talking about extended camping without power hookups, bring plenty of gas anticipating heavy genny use keeping the battery up, daily drawdown will certainly take it below 50 percent. 100 watts of solar keeps a single battery pretty happy, Renogy has a reliable suitcase option under $300. Being portable it can be used with your TC, simply plug and play.

[Matt_Colie]

Dave,

Your question, while interesting is patently unanswerable.
Things that will matter are:
The actual condition of the refrigerator.
The installation of the refrigerator.
The ambient temperature where the refrigerator is installed.
The amount of ventilation around the refrigerator.
The state of the battery when the power supply is disconnected.

And that is all I can think of right now.

I like and install Lifeline AGMs all the time. (Well not a lot since the start of the depression.) But, they are still lead/acid chemistry. That means that a discharge of more than half the rated capacity will probably cause a loss of capacity in the future.

If you want to go with lifeline, look up powerstridebattery. You may be better off with just something you can buy cheap unless you can install a pair of GC2s.

Matt

[MEXICOWANDERER]

Tall? If you have height room the Lifeline "2-story" group 31 Lifeline would fit in the space big enough for a single. After purchasing 4 apartment size 120 vac refrigerators for the hotel, I was shocked at how much electricity they porked-out on. The motors ran 24/7 and consumed 90+% of the kWh of a good energy efficient brand of household refrigerator.

[dave17352]

Harvard wrote:
You need to look at your Amp Hours to answer the question properly. But if you want a gut feeling, the one battery will not get you through one night. IMO

I am thinking the lifeline 125 amp hour agm

[gbopp]

The 12 Volt Side of Life

[time2roll]

A 10+ hour stop over to sleep may put a bit of a strain on the battery and still for part time use it may work fine.
You could test at home and get the second only if needed.

[Harvard]

You need to look at your Amp Hours to answer the question properly. But if you want a gut feeling, the one battery will not get you through one night. IMO

[Bumpyroad]

the only reason I might hesitate to try the 31 would be if it is so large that you can't put a second battery in if needed?
bumpy