The Costco version is the Jabra Pro 10, not Enhance 200. I know Costco sells rechargeable and disposable battery versions that use 312 or 13 batteries; mine use the 13s, which last for 2 weeks with my usage. I have RICs, but they apparently sell CICs and BTEs, too.
With a Noahlink and ReSound software, you’re free to adjust the settings yourself.
Are you sure about your needs? Which receivers do you need? Which domes/molds? Do you want M&RIE or standard receivers? Etc., etc., etc.
I’m not so worried about the battery not lasting. My worry is about having the recharger accessible when I need it. No one seems to stock rechargers, so if you leave it at home on a trip or misplace it, you might be out of luck.