Cat flap power supply

I have a sure petcare cat flap and it begs for batteries more often than my cats for snacks. Rechargeable batteries last for 1 week max and start showing low battery after like a day or so (they operate at lower voltage so the circuit thinks they are low) I decided to hardwire it. So far so good. I found it using 4x 1.5v in series so 6v is hitting the board. I tried connecting 5v phone charger to it and it starts, shows low battery (which is fine) but then the microchip reader doesn't really work. It would scan sometimes but fail to scan more often than not trapping my boys inside. Connecting power bank solves that but doesn't help awful lot with the hassle of charging/swapping etc. I tried 6v supplier to make sure this is not a low voltage issue and then it doesn't report low battery but the reader is still not working. I am thinking the issue is with the instable voltage (which is what Sure say on their website to justify having their devices battery powered). I am looking for some stable linear power supply to try and u was wondering if anyone had similar requirements for the project and can advise in what to use to supply it? I bought and returned quite a lot of these by now. I would be comfortable with simple soldering (as my soldering iron is rather crappy). I just think I might be overthinking it and there is an easy solution so going to Reddit for help :) Please go easy on me - it's my first post in the community! submitted by /u/Inevitable-Ordinary2 [link] [comments]

Mar 1, 2025 - 15:12

I have a sure petcare cat flap and it begs for batteries more often than my cats for snacks. Rechargeable batteries last for 1 week max and start showing low battery after like a day or so (they operate at lower voltage so the circuit thinks they are low) I decided to hardwire it. So far so good. I found it using 4x 1.5v in series so 6v is hitting the board. I tried connecting 5v phone charger to it and it starts, shows low battery (which is fine) but then the microchip reader doesn't really work. It would scan sometimes but fail to scan more often than not trapping my boys inside. Connecting power bank solves that but doesn't help awful lot with the hassle of charging/swapping etc. I tried 6v supplier to make sure this is not a low voltage issue and then it doesn't report low battery but the reader is still not working. I am thinking the issue is with the instable voltage (which is what Sure say on their website to justify having their devices battery powered). I am looking for some stable linear power supply to try and u was wondering if anyone had similar requirements for the project and can advise in what to use to supply it? I bought and returned quite a lot of these by now. I would be comfortable with simple soldering (as my soldering iron is rather crappy). I just think I might be overthinking it and there is an easy solution so going to Reddit for help :) Please go easy on me - it's my first post in the community!

submitted by /u/Inevitable-Ordinary2
[link] [comments]