I finally got my hands on some LIR1254 cells. So a quick update on how these work, and we do a blind test where I ask my daughter to go and hide it in a field and then try and find it.
As before, the DroneKeeper Micro came from http://www.nichemall.net/ so you can check out their site for more info. They've also added a link to the one AliExpress seller that seems to do LIR1254's in small quantities.
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