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Originally Posted by Gizmo  In addition, simply jumpering the batteries together doesn't prevent an internal short in one battery from destroying the entire array, and maybe the UPS too. That's why there's a 100 amp car fuse in there. |
Seen that happen in a much larger UPS array in a previous employment - the battery cabinet pretty much melted after a battery went short and took the rest of the array with it. Twas an evacuate the building and call the fire brigade job.