I have used 2 of these connectors to replace faulty 9v battery terminals in fan remotes. The fan remote that came with the controller, as well as the remote for it, had faulty wire connections to the 9V battery. I just removed the circuit board and soldered a new connector out of these 10 and wow the remotes work great now. These are very good strong battery connectors and wires. Attached is a picture of the spare battery connectors as supplied in a zipped pouch for storage.
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