On 04/11/2017 21:33, Dave Liquorice wrote:
On Sat, 04 Nov 2017 17:32:37 +0000 (GMT), charles wrote:

It's the possibility that a low power output doesn't charge it at
all,
that's the problem

Certainly the case with my iPhone

Apple make products that are "fussy" about what they will consider to
be a suitable energy source for charging. Various combinations of
resistors between the wires an/or ground IIRC.


IME it's the cable more than the charger - very fussy about cables.
Anker have been the most consistently reliable non-Apple cables I've used.

--
Cheers, Rob