These batteries are most likely made in China, so we can expect to find them online from another chinese website. I can not see a chinese manufacturer only selling the kind of batteries just to HL. It just doesnt make sense to make 1000 or 5000 of these batteries just for one company. I wonder how many parts are made in China, maybe the entire unit is made in China. Just like Apple products, it is designed in California but assembled in China.
The batteries say Made in China on them.
There is no other known product in the world that these batteries fit in. Are you assuming that the manufacturer will break a contract and go sell them on the side? Conversely, why would anyone else be making these to sell (other than for HL)? The market is tiny, just Hopper users.
HL has always laid it out as assembled in USA and they've made no secret that the majority of parts are outsourced, yes mostly from the country you name six times in five sentences. I believe some of the parts may be made in US (the 3d-printer heater element?). They have their own machine that assembles printed circuit boards.
I think it is precisely because the batteries are proprietary and in roll out of new battery version that we now see this delay. I'm betting Hoppers are lying dormant like Cicadas waiting to burst forth in a loud flurry when given the power.
But is Santa gonna be carrying a sleigh full of Hoppers to all the good boys and girls this year? Especially the ones who have waited so long? Please, Santa? We'll know soon enough.