for TG-LR92 / TG-LR82 is there any support for external power? even if the sensor box is ~$30 (relatively cheap....-ish), i see that it's basically designed as planned obsolescence e-waste with about 5 years life because it depends on the internal battery - that battery is not designed to be recharged or even replaced. (i wonder... is it potted in resin inside?)
The PDF says 1100mAh LiMnO₂, Non-replaceble in the spec sheet (yup, typo included too! 
)
i was looking if it's possible to change the battery to a rechargeable one and/or a beefy supercapacitor, and then charge it with a small solar panel mounted on top... was thinking of installing such sensor tags on a moving (swinging) gate close to the gate hinge and connect it to a small solar panel mounted on top of the pole with the hinge.
Maybe even glue a small solar panel directly on top of the tag box, there are modern solar panels that are tiny enough and can fit perfectly when glued on top of the box and can do enough trickle charge for this.
