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 Post subject: How to connect two UPS batteries in series?
PostPosted: Fri May 02, 2008 8:41 pm 
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Joined: Sun Dec 10, 2006 12:41 am
Posts: 51
Location: Finland
I have a Powerware 5110 UPS that uses 2x 7Ah batteries.
And naturally when I removed the old batteries I didn't think to make note how the cables were connected..

So here's a picture with batteries and cables, if you could tell me which end goes where I'd be very thankful :)


Image


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 Post subject:
PostPosted: Fri May 02, 2008 9:41 pm 
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Joined: Sat Mar 29, 2008 7:05 pm
Posts: 239
Location: Toronto Ontario
You hook up positive with negative on one battery, then the remaining 2 terminals to the UPS. AB to 23, D to 1 and C to 4. This will give you double the voltage though. If you're looking to double your battery life then you want parallel, but at the voltage of 1 battery. Here's a quick image to guide you:
http://www.zbattery.com/core/media/medi ... 9ae9849759

Be absolutely sure that your UPS runs these batteries in series first. If you didn't lose any cables then you can be reasonably sure it runs in series as parallel will require an extra wire.

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PostPosted: Fri May 02, 2008 10:46 pm 
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Joined: Sun Dec 10, 2006 12:41 am
Posts: 51
Location: Finland
Those are all the cables it had, thanks for the help :)


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