Anyone use Optima batteries? - Fiberglass RV


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Old 05-27-2019, 05:05 PM   #1
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Anyone use Optima batteries?

I'm going to convert over to Gel or AGM batteries after I upgrade my Magnatek Convertor. Has anyone here tried the Optima batteries? If so Which are the best to get? I see they have blue tops and yellow tops, etc. Or if you have another recommendation in the same price range I'm all ears.
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Old 05-27-2019, 09:03 PM   #2
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I think your best way to get a good answer is to call Optima (actually call Johnson Controls in Canby Oregon) and ask for the technical rep.
He can guide to the right battery.
Now my tale of woe, I though that I would improve my battery situation by going to a Trojan true deep cycle battery. Cost me over $100 for Trojan, It was stolen from my trailer and I replaced it with a Walmart battery. Probably made by the Johnson Controls. It's worked great for about 3 years now and before that I had the original from Scamp that lasted almost 10 years. If you're flying an airplane inverted then a sealed battery might be worth the cost, but I don't think so for a TT.
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Old 05-28-2019, 03:37 AM   #3
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Let me tweak my question just a little. In addition to wanting to upgrade my single battery to two batteries I also want to move them inside of my Oxygen. There is a lot of unused hidden away space that frankly isn't all that accessible on an every day basis but would be fine for batteries. Between Gel and AGM which would be more suitable for an inside installation.
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Old 05-28-2019, 06:15 AM   #4
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About Optima batteries. I own a 2006 Jeep Liberty CRD (diesel) that came new with an Optima Red top. Just before that time Johnson controls bought Optima and the general thinking was that Optima quality was downgraded. The OEM Optima batteries didn't last long in the CRD's and their full charge voltage is a little lower than a normal battery that caused problems with the no less than 7 computers in the Liberty getting along.
I replaced it with a no longer available Sears P1 made by "Odyssey" in October of 2011 that is still working very well.
https://www.odysseybattery.com/
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Old 05-28-2019, 09:27 AM   #5
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Time for lithium?

Seems like you are at a great time (because of replacing batteries and upgrading charger/converter) to consider lithium batteries? You can use considerably less space and weight as well as having maintenance free batteries that can hold their charge for nearly a year. Not to mention getting to use almost all of the amp hours of capacity you purchased. Iím just waiting for my lead-acid batteries to die so I can make the swap.
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Old 05-28-2019, 09:41 AM   #6
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Quote:
Originally Posted by Craigb2000 View Post
Seems like you are at a great time (because of replacing batteries and upgrading charger/converter) to consider lithium batteries? You can use considerably less space and weight as well as having maintenance free batteries that can hold their charge for nearly a year. Not to mention getting to use almost all of the amp hours of capacity you purchased. Iím just waiting for my lead-acid batteries to die so I can make the swap.
I would love love love to go Lithium however the price scares me. From what I've seen they are pushing $1000 each U.S.. Not only does the cost scare me but my utter ignorance with charger/convertors and solar panels makes me think I could ruin them in fairly short order if everything isn't done perfectly.
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Old 05-28-2019, 08:39 PM   #7
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We use red top Optima batteries for our battery-backups on our Outdoor Warning System (tornado siren). Six batteries in series in case they lose ac power.
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Old 05-28-2019, 09:49 PM   #8
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I would use yellow tops for your application, they tolerate deep draining better than the red tops.

Having said that, I suggest you consider Odyssey. I have one in my vehicle for several years now and been very impressed. It isn't very big, only a Group 34, but it has run my CPAP and my 12 volt fridge overnight without discernible effect on starting the vehicle the next day. And during the polar vortex when it got down to minus 30 here it cranked a little slower but not by a lot. Also, made in the USA.

Whichever you get, make sure your charger is designed to charge AGM batteries, they like a little higher voltage than regular lead-acid to charge fully.
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Old 06-05-2019, 10:20 AM   #9
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Originally Posted by Steve Hammel View Post
I'm going to convert over to Gel or AGM batteries after I upgrade my Magnatek Convertor. Has anyone here tried the Optima batteries? If so Which are the best to get? I see they have blue tops and yellow tops, etc. Or if you have another recommendation in the same price range I'm all ears.
I like the firefly batteries they are 12 volt but you only use one battery and you will still have a longer power life with it than with 2 x 6 v
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Old 06-05-2019, 10:24 AM   #10
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Who makes firefly? Are they suitable for an interior installation? Thanks
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Old 06-05-2019, 10:28 AM   #11
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Originally Posted by Steve Hammel View Post
Who makes firefly? Are they suitable for an interior installation? Thanks
Yes they are if you look up firefly batteries you will see the story on them.
We can get them in Canada so I would think you could get them in the USA
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Old 06-05-2019, 10:42 AM   #12
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Optima 31M. Blue top. Great value. I've been using a pait in a Casita for over 11 years. Solar only. Engel 48qt refrige. 130w panel. Never been plugged in. Still get full voltage charge and seem to have same capacity.
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Old 06-05-2019, 11:51 AM   #13
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Originally Posted by Yardsailor View Post
Optima 31M. Blue top. Great value. I've been using a pait in a Casita for over 11 years. Solar only. Engel 48qt refrige. 130w panel. Never been plugged in. Still get full voltage charge and seem to have same capacity.
Wow, that sounds like great performance.
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Old 06-05-2019, 12:05 PM   #14
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Steve: Between Gel and AGM, I think AGM is the better choice for camping trailers.

If you decide to move to 2 batteries inside the trailer, remember that Gel and AGM both sill need to be vented to the outside.

If you can handle the weight and the form factor, (2) 6V GC2 golf cart batteries will give you much more reserve power for boondocking.

Optima batteries promotes their Blue Top as the choice for RV and boat use. It is a hybrid between a starting battery and a deep cycle battery. If all you need is deep cycle capability, there are better choices out there.
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