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Topic ClosedIdeal location for a battery disconnect switch

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Direct Link To This Post Topic: Ideal location for a battery disconnect switch
    Posted: 21 Sep 2018 at 7:57am
Originally posted by offgrid

Great at least some of us are getting some really good battery life.

I'd love to have a classic car again but here in the outer banks cars turn into rolling piles of iron oxide in short order. Wouldn't be worth the heartbreak.  And because of the flooding  ground level enclosed garages aren't a great idea.  Better to just leave them outside and let the rain rinse at least some of the salt off, and don't get too attached...


But.. you get those fantastic sunrises almost every day, and all that.. Smile Smile Smile 
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Direct Link To This Post Posted: 21 Sep 2018 at 9:03am
Originally posted by offgrid

Not to take away David from your 18 year old starter battery, that is really great.


Odd thing is - there is nothing special about the battery. It is just the standard AutoZone 3 year(?) warranty battery. It has not been pampered at all and has been allowed to get flat a couple of times. It has evolved into a challenge for me to see just how long it will live.

When it does eventually die, someone should do an forensic autopsy on it to determine what was "special" about it! (And duplicate it in future batteries)

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Direct Link To This Post Posted: 21 Sep 2018 at 11:58am
Yeah, I love all the great sunrises and sunsets and the beach and kayaking in the sound too, which was why we bought the house here originally. But its a little bit different thing to live here full time. Then after awhile what you want is some actual land that is more than 2-3 feet above sea level, a road that doesn't wash out in every tropical storm and nor'easter, and a Home Depot or Lowe's that is closer than an hour and a half drive each way. Don't know what I'd do without Amazon Prime, much better to let the UPS guy drive the company truck through the salt water...
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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Direct Link To This Post Posted: 21 Sep 2018 at 12:26pm
David, if you're interested, this is a good general summary of the various factors that limit lead acid battery life. Lots of other good stuff on this website too. 

https://batteryuniversity.com/learn/article/corrosion_shedding_and_internal_short

One factor he's not mentioning here is temperature. Rule of thumb is that the rate of chemical reactions (in this case battery internal corrosion) doubles with roughly every 10 deg C temp rise. So 8 years in the UP of Michigan might become 4 years in coastal NC and maybe only 3 years in Phoenix. 

Many people think that its bad for batteries to be stored in cold conditions, but its really not as long as you keep the electrolyte from freezing, which you can do even in cold places just by keeping the battery charged. The battery won't perform well when cold but after you warm it back up it should be fine. 


1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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