Finally. After a long wait, Fenix should give us soon there battery-pack for the TK70. I emailed them 2 days ago, and just received this answer: "We have finished all tests for the battery, but we are testing the materials of the package. It will go into the market this month."
No idea what "testing of the package materials" means, a cardboard box shouldn't be that hard to make - but I'm happy it comes