Sorry, but that is not correct. There are aspects of the standard that make it a bit of a challenge to have a user replaceable battery given how small the latest units are, but it could be done, technically. It would certainly add size and weight, and cost as well. The first generation McMurdo PLB, much larger than the current generation, had a user replaceable battery pack. No real reason, see my prior response, to do that today or going forward. Size and weight are king