More complain cases incoming and notice how they downvote it on reddit:
REPLACEMENT FAIL!!! niceeee (posted today)
https://www.reddit.com/r/ledgerwallet/comments/pjwati/replacement_fail_niceeee/
You sent me 2nd BROKEN LEDGER! (Unacceptable) (posted today)
https://www.reddit.com/r/ledgerwallet/comments/pjv069/you_sent_me_2nd_broken_ledger_unacceptable/
Ledger quality control check = zero.
This is just getting started, I suspect much more people will start to complain when they receive new nano x devices.
REPLACEMENT FAIL!!! niceeee (posted today)
https://www.reddit.com/r/ledgerwallet/comments/pjwati/replacement_fail_niceeee/
You sent me 2nd BROKEN LEDGER! (Unacceptable) (posted today)
https://www.reddit.com/r/ledgerwallet/comments/pjv069/you_sent_me_2nd_broken_ledger_unacceptable/
Looks like one of their assembly workers intentionally [it has to be, based on the number of reports I'm seeing here] pushed the battery connectors down, so it doesn't make that much contact!
I watched that video posted by one guy and connectors are totally squashed, but they are probably made from some cheap material and bad contact could happen again in future even if you open your device and ''fix'' it yourself Ledger quality control check = zero.
Still... for a device that costs as much as the Nano X does, this should not be happening... the build quality and/or QA Testing is seriously lacking 
Imagine paying 119 euros for this faulty device, and they send you replacement that is also faulty, so you have to pay shipping and customs multiple times, like it happened to some people in previously posted comments. This is just getting started, I suspect much more people will start to complain when they receive new nano x devices.
Luckily Nano S doesn't have its own battery. I just don't like this new mess up (c) by Ledger.
Integrated batteries are not good for hardware wallets, but I like the idea of having standard batteries you could take out whenever you want and replace with new ones, like Keystone and Passport are doing.