Deep Cycle Battery Help

[Vedette]

I need help! I wnt to buy an "Eveready Deep Cycle Batery from Walmart"
Which one is best for a teardrop????
I am not going to be using a lot of power.
Koolatron Cooler, interior lights, laptop, etc.
Please give me your thoughts
Part number required.
I did find a site on the internet, and found the battery I thought I needed on the "Specification Sheet" but wrote down everything but the part #
Good Roads
Brian

[mikeschn]

Your Koolatron cooler and your laptop will drain down your battery pretty quick.

Have you every done a usage analysis?

Try this one... http://www.where-rv-now.com/Notes/Solar ... Calculator

Mike...

[Vedette]

Looked at this but didn't give me any answers.
Not interestested in Solar Power.
Just looking to find what is the "Norm" for a middle of the road teardrop.
Brian

[mikeschn]

Your Koolatron cooler draws 4.5 amps per hour.

If you buy a 100 amp hour battery, and can only draw it down 50%, then in 11 hours you are effectively done!

Mike...

[Cap't Jonny]

I had sailboats for many years and in my mind the Trojan t 105 is the best deep cycle for the money. If you can find a contractors license or a business license try calling the local stocking distributer and buying directly from them. I did and got a good discount. Be sure the battery is fresh - check the mfg date - sometimes a battery can sit for months before it is sold and that will reduce its life expectancy.

Be sure you get a true deep cycle battery as starting or "marine" or dual purpose batteries won't last at all.

I would suggest you use the battery only for (led, fluorescent) lighting and maybe a radio as these are not big current draws. possibly an led tv would be ok if you keep the size and power usage down. If you want your battery to last you should get an energy monitor with a cut off of no less than 5o%

If you run your battery down below that you will greatly shorten its life.

An option would be a glass mat battery like the optima. These can be discharged to a greater depth. They are more expensive and don't have the service life of a premium flooded battery though.

[afreegreek]

Your Koolatron cooler draws 4.5 amps per hour.

If you buy a 100 amp hour battery, and can only draw it down 50%, then in 11 hours you are effectively done!

Mike...

this 50% discharge thing is a bit misleading.. those numbers are given so people can get the longest possible life out of the battery.. back in the day all I had was a couple of deep cycle batteries for power and would regularly drain them until the alarm on my inverter would sound.. that brought me down 80% and those batteries lasted about 2 years of daily use or about 700 - 800 charges.. if a person is only using the batteries for occasional camping trip, then the batteries should give good service life even at deep discharge rates.. the trick is to get them fully charged again ASAP

btw, batteries only last so long anyway no matter how you use them.. it's about 5 year lifespan