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Old 03-10-2012, 02:45 AM   #1741
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so if one poops out, the batteries don't have to be replaced with matched pairs?
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Old 03-10-2012, 04:24 AM   #1742
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Batteries

I found a very cheap and effective option for my van. There is a surplus store where I live that has a bunch of very large UPS batteries. There are a lot of places with critical power needs where they replace the batteries on a set schedule so they are not new but they still work well. 50ah 12v batteries for $25 I figure I can't go wrong. I bought 3 last summer and they have worked great for running my ceiling fan, big inverter to run coffee pot, and a few other odds and ends. I then have a very small inverter that runs off the van connected to a smart battery charger to recharge (yes, I know lots of loss with that setup but it charges the batteries well). If I don't drive far enough to fully recharge I just plug in an extention cord to the charger when I get home.

Total cost of batteries, the "charging inverter" and the charger was under $150. I could easily add a bunch more of the same batteries if needed at $25 each if I need more.
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Old 03-10-2012, 06:51 AM   #1743
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Great info.
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Originally Posted by drc42 View Post
I found a very cheap and effective option for my van. There is a surplus store where I live that has a bunch of very large UPS batteries. There are a lot of places with critical power needs where they replace the batteries on a set schedule so they are not new but they still work well. 50ah 12v batteries for $25 I figure I can't go wrong. I bought 3 last summer and they have worked great for running my ceiling fan, big inverter to run coffee pot, and a few other odds and ends. I then have a very small inverter that runs off the van connected to a smart battery charger to recharge (yes, I know lots of loss with that setup but it charges the batteries well). If I don't drive far enough to fully recharge I just plug in an extention cord to the charger when I get home.

Total cost of batteries, the "charging inverter" and the charger was under $150. I could easily add a bunch more of the same batteries if needed at $25 each if I need more.
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Old 03-10-2012, 06:55 AM   #1744
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My experience with UPS batteries is that they have a hard life. They are always charging and always being discharged and rarely experience any significant discharge... often the first time they are deep cycled the fail.

My clients who get it change all UPS batteries on a 2 year cycle (which is about the lifespan).
The rest change them the first time there is a significant power outage (because the batteries get deep cycled for the first time in years and fail).

I hope yours work well!
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Old 03-10-2012, 07:02 AM   #1745
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There are some smart dudes, around here.
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Old 03-10-2012, 08:05 AM   #1746
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I have some experience with UPS battery systems and can tell you that you'd be lucky to get a battery that has 1/4 of its useful life left. Most UPS batteries have an in-service life of 5 years-and has been noted, you'll replace them sooner rather than later. However, a lot of them are being replaced only when they start to show signs of age or lose capacity. You also can't tell whether the UPS was run at or over capacity for any length of time and that can have an adverse effect on battery condition.

I would think buying a surplus UPS battery won't save you any money. Maybe for a short term need but if you have to replace them more frequently or you don't get the required usage, they end up costing more than a new one would have.
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Old 03-10-2012, 08:08 AM   #1747
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Plus, if you do the math of ah / price, his used UPS batts are coming out only slightly cheaper than buying a new Group 31 AGM batt.
If I could find new batteries for just slightly more I would go that route, but I have not found anything that comes close to 150ah for $75 ($25 for each 50ah battery). But it is likely I don't know where to look.

Been happy with them so far but just installed them june of last year. Ask me again at the end of this summer and I might have a different oppinion of them.
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Old 03-11-2012, 07:51 AM   #1748
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So I'm an idiot.

Fed-ex overnight delivered my rivnut gun.. but I missed the delivery because I was off buying something for the inside of the van...




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Old 03-11-2012, 08:21 AM   #1749
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Dear Geek,

You really suck!

Your pal, FC
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Old 03-11-2012, 08:21 AM   #1750
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Dear Geek,

You really suck!

Your pal, FC
Sucks the most.

(congrats, Ed!)
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Old 03-11-2012, 08:30 AM   #1751
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Suck...Suck...Suck
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Old 03-11-2012, 08:46 AM   #1752
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nope

We did look at the 2012 CRF230 which they are blowing out cheap (rumor is a new FI version is coming)... but we she really wants a Freestyle which hasn't been brought into the US yet.
Her F650 will do for a bit.
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Old 03-11-2012, 08:56 AM   #1753
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Nice 500

Quote:
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So I'm an idiot.

Fed-ex overnight delivered my rivnut gun.. but I missed the delivery because I was off buying something for the inside of the van...




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Old 03-11-2012, 09:16 AM   #1754
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you suck. A LOT.
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Old 03-11-2012, 09:21 AM   #1755
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you suck. A LOT.
He's the new benchmark of suck.
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