Apple’s 14.3 software update for the HomePod and HomePod mini allows the smart speakers to be powered by select 18W chargers and battery packs.

The HomePod mini now works with Apple’s own 18W USB-C power adapter and select third-party 18W power adapters from brands like Aukey. One user was even able to power the HomePod mini with an 18W battery pack from Cygnett, allowing for portable use.
Previously, when attempting to use the HomePod mini with a power adapter rated below 20W, the speaker would simply display an orange light and not function. This may still be the case with certain 18W power adapters, as certain power profiles may be required.
Apple includes a 20W power adapter with the HomePod mini, but many customers may have an 18W power adapter from an iPhone 11 Pro or other device.
MacDailyNews Take: Those looking for HomePod mini portability should know that the Anker USB-C Power Bank 18W battery pack (currently $10 off at Amazon for $49.99) also reportedly works to power HomePod mini for portable use.
Apple should buy Anker. No, second thought, I’m glad they are independent, so I can get excellent Apple focused accessories at fair prices.
If it is now “portable,” how do you connect it to an iPhone without WiFi?