Have it just be form-fitted outside contacts, with magnetic adhesion to hold the plug in place.
I actually really like this idea. If we’re breaking backwards compatibility anyways, let’s do something useful with it. This form factor was invented in the 1950s. I’m sure we can do something better now.
We need to move away from everything having a battery anyways. Wireless headphones were a mistake. Now people are walking around with 4-6 batteries on them at all times. Phone, laptop, earbuds, earbud case, battery backup, smart watch. Batteries aren’t great for the environment, not to mention they typically condemn something to being tech waste in a few short years. We need to significantly rethink this model.
I just want to follow this up and stress how important it is. This isn’t “oh, it kinda sucks but you can tolerate it” territory. It’s actually unusable after a certain point. I inherited a Synology NAS at my current job which is used for backup storage, and my job was to figure out why it wasn’t working anymore. After investigation, I found out the guy before me populated it with cheapo SMR drives, and after a certain point they just become literally unusable due to the ripple effect of rewrites inherent to shingled drives. I tried to format the array of five 6TB drives and start fresh, and it told me it would take 30 days to run whatever “optimization” process it performs after a format. After leaving it running for several days, I realized it wasn’t joking. During this period, I was getting around 1MB/s throughput to the system.
Do not buy SMR drives for any parity RAID usage, ever. It is fundamentally incompatible with how parity RAID (RAID5/6, ZFS RAID-Z, etc) writes across multiple disks. SMR should only be used for write-once situations, and ideally only for cold storage.