@tewha Yeah, I will go and change the battery later this summer or early fall. The device might be used as a testing device, so it would be nice if it would not be a total brick. Alternatively, if I can purchase it to myself (it is owned by the company) it will be passed on to my older daughter1. It would be nice if she could actually use it, should that scenario play out.
// @sumudu
Whose 5s will be then passed to our older son whose 5 will be given to the younger son.