[dotancohen]

If you're already committed to carrying Yet Another Accessory, then why not just carry a small portable charging battery. Some models are not much larger than that USB connector, and could charge the phone more than sitting babysitting a charging phone for an hour.

[ghaff]

Yeah, I normally carry bigger portable batteries but I've got a bunch of small ones that I've typically been given by vendors which are probably good for at least getting a phone off life support.