Re: Stand-by power supply question
- From: "Tom Biasi" <tombiasi@xxxxxxxxxxxxx>
- Date: Sun, 9 Nov 2008 12:20:22 -0500
"Dave, I can't do that" <davenpete@xxxxxxxxx> wrote in message
news:e3058c18-0eb7-42c2-9ba2-01445619d43d@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi people,
I have a Un-Interruptible Power Supply with a dead battery.
Am I correct in thinking that I could remove the dead 7AH gell-cell
and run the wires outside to a bigger battery for longer stand-by time
during an outage?
I have some 25AH batteries here I could use. The 7AH gave me about 5
minutes so would the 25AH give me roughly 3 times as long during an
outage?
Would I also need to add a float charger to the 25AH to supplement any
shortfall in keeping the 25AH fully charged until called upon.
Thanks
Dave
You are thinking correctly.
Your UPS charging system may not keep the larger batteries in shape.
If you use an auxiliary charger on the larger batteries make sure they are
not conflicting with each other.
You may need some isolation.
Tom
.
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