Get rid of batteries on the Fisher-price swing to DC input
We bought a new swing recently and has been consuming 4 C batteries every week. I am wondering if can hook it up to Wall transformer. Any ideas? I have some wall-wart at home that output 6-9v. Can I use them? I can convert the wall-warts as per the instructions here: https://www.instructables.com/id/wall-transformer-for-project-power-supply/
but do i need to change anything in the swing? and how to hook it up?
Please advice ..