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Old 10-17-2018, 08:48 PM   #1
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House Batteries

So the AGM Intimidator batteries have been intimidated after only three years. Any suggestions on where to buy replacements at a decent price?

Maybe my memory is failing but I thought Jared said they were an eight year battery.
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Old 10-17-2018, 09:17 PM   #2
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Walmart starting batteries have a 3 year warranty and are a heck of a lot cheaper than AGM's
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Old 10-17-2018, 11:45 PM   #3
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Walmart starting batteries have a 3 year warranty and are a heck of a lot cheaper than AGM's
House batteries shouldn't be starting batteries.
They need to be deep cycle.

They should have more than 3 year life.
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Old 10-17-2018, 11:52 PM   #4
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House batteries shouldn't be starting batteries.
They need to be deep cycle.

They should have more than 3 year life.
https://72land-n-sea.blogspot.com/20...batteries.html
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Old 10-18-2018, 06:27 AM   #5
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This is not an area where you want to go cheap. I replaced mine with Interstate 31 series AGMs. 3 year free replacement warranty (not prorated). Pricey but well worth it.
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Old 10-18-2018, 07:28 AM   #6
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AGM are a bit more robust than LA( lead acid ) but still have limits on discharging and requirements for charging .


Don't treat them properly and 3 years from AGM is not that bad.
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Old 10-18-2018, 08:27 AM   #7
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Congratulations... I can write a BS blog too...
I prefer to buy quality gear and treat them as intended.
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Old 10-18-2018, 09:05 AM   #8
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Don't skimp. 8 years would be a long time for a battery to last...but it can be done if taken really well care of. Most RV's, this is not the case. Every time you take the battery down to below 50%, you are taking a small piece off the top of its capacity. So hypothetically speaking, if you drop it below 50% then the next time it charges up, you might only get 99% of its original capacity.

As an example...the rental account I used to handle has always bought the very best flooded batteries they could get. High end, Interstate, true deep cycle. That rental account bought the best, because renters rarely take care of the batteries and they would have to replace batteries within one season...because they would drain them down so far and so frequently that they would be toast in one year. SO they bought the best to try and prevent that. If they could get two seasons with a more expensive battery, that was better than buying two sets of cheap...not to mention the service calls for the cheap batteries. When I came over to Dynamax, we ran AGM's and I did more research....which I passed on to them.

This year, they switched over to AGM's and did not replace one single set. One, you can drain AGM's down further than flooded without damage (I suggest not testing that with your own batteries), they are a true deep cycle and are maintenance free. So no worry about "low fluid levels causing further damage". They were "JUST" user proof enough, that people had a harder time being stupid with them.

So anyway...real world example from a fleet using 400 sets of batteries.
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Old 10-18-2018, 09:10 AM   #9
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Lol starting batteries are even more sensitive to being run down than deep cycle. Much thinner plates are used to get high CCA but since theyíre used for only starting theyíre not meant to be discharged heavily. Have fun wrecking your starting batteries
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Old 10-18-2018, 09:16 AM   #10
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So the AGM Intimidator batteries have been intimidated after only three years. Any suggestions on where to buy replacements at a decent price?

Maybe my memory is failing but I thought Jared said they were an eight year battery.
Battery life is as simple as a number of cycles to a certain discharge level. The deeper you discharge the less cycles you get. I think most AGM are around 1000 cycles to 50%. Much less if they get taken to 20%. Outside of a quality AGM youíre only step up is lithium. Itís a huge upfront cost but cheaper in the long run. Without heavy daily battery use though I find the AGMs to be the happy medium.
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