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Showing results for tags 'battery back up'.
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Hi Everyone, Got another weird one to challenge you all with. We have a client whose building is doing a power shut down over Easter but they require 3 doors that are access controlled to remain live throughout. They can't physically lock the doors so they have asked us to boost their battery back up for a total of 84 hours. There are 3 x door controllers + double maglocks + 3 readers. Estimate draw of each door to roughly 2-2.5Amps. I was going to simply add some more batteries to their existing system but surely there is a better way than wiring up 20 x 12V 17Ah batteries to each door?? Please help me get out of this box that I've been stuck thinking in....
