[culturestate]

> Not being able to charge from a backpack or a car is a non-starter for me.

In this hypothetical future you'd have to replace the power bank and charging cables that you currently own, but you'll be able to achieve both of those goals just fine. You can already buy power banks[1] with built-in charging coils, and I imagine some enterprising company will be along with a svelte USB-to-Qi-coil cable that suctions onto your phone any day now.

1. https://thewirecutter.com/reviews/best-qi-wireless-charging-...

[londons_explore]

So far, efficiency is kinda low for use with portable battery packs.

You'd need to carry around a pack twice the size.

[8fingerlouie]

I carry a 10000 mAh battery pack[1] in my jacket[2], which besides powering the heater elements inside the jacket also provides wireless charging to my phone.

I don't know about effectiveness, but 20-30 minutes of wireless charging gives 60% + of battery power on my phone, and while i don't regularly charge my phone fully in the jacket, only top it off, i charge the battery pack once every week or so, and it is very rarely at 0%

[1]: https://www.amazon.co.uk/SANAG-Wireless-Portable-10000mAh-Co...

[2]: https://www.ministryofsupply.com/products/mens-mercury-intel...