Anyways the reason it was free is that the batterys were like bulging out braking the saroundings of the battery(the plastic) So i pryed the old batterys out and was going to buy new batterys for it. However i recently came accross another battery backups APC 750 this one to be exact: http://www.apc.com/resource/include/techspec_index.cfm?...
Well obiously i want the more powerful one so i have taken the batterys which seem good out of the second one i've gotten and was wondering if they would work in the 1300XS UPS:
Also I was wondering what this fuse type thing in the battery bridge on the battery Is and if i should keep it on it or just do a straight bridge without the fuse:
Well obiously i want the more powerful one so i have taken the batterys which seem good out of the second one I've gotten and was wondering if they would work in the 1300XS UPS:
I refurbish a LOT of UPSes. I would throw away the Back-UPS XS 1300 and use the Smart-UPS 750. Smart-UPSes have a lot of features the Back-UPS XS series do not...things like an indicator of the load, power factor correction, etc. If You are worried about overloading the Smart-UPS 750, just plug it in and try it for 10 minutes. You will see the lights on the front telling You what the load it. I doubt You will overload it.
the batteries are going to be different... hence the different ratings on the ups and different batteries.
the one is 750va/500w
the other is 1300va/780w
Sorry, SSDDX, that is wrong. A quick search reveals that both use a pair of 12V 7AH (or 7.2AH or 7.5AH or 8AH or 9AH) SLA batteries. Most UPSes use standard size SLA batteries, and 12V 7AH is the most common size. The measure about 5.9"x2.5"x3.7".
Smart-UPSes are over-engineered. Back-UPS XS units are garbage. Thus, a Back-UPS XS 1300 uses the same batteries as a Smart-UPS 750.
If the batteries were already in the APC Smart-UPS, use them. That Smart-UPS 750 will last a lifetime, but You will have to replace the batteries every few years. (Every few years assumes You get new matching batteries and replace them all at once. If You use random use batteries, they will last a month or two.)
When You replace the batteries, You can buy the (ludicrously expensive) APC replacement cartridge, or You can buy just the (reasonably) batteries and install them.
There is a danger in that shorted SLA batteries CAN explode, just like a shorted motherboard CAN be destroyed by the short.
CHEAP GUY'S TIP: I get my batteries from a local guy who ships them all over the USA from his home. I call ahead and place an order, then go by his home to pick them up. I save the S/H cost that way. My supplier charges $17.95 each for 12V 9AH batteries. I am not linking to my supplier, because his S/H would be too high if I did not drive over to pick up a dozen batteries at a time.