On 05/02/2019 21:44, Andrew Gabriel wrote:
> In article ,
>  mm0fmf  writes:
>> On 05/02/2019 12:09, David Higton wrote:
>>> What about using a shorter and/or thicker cable
>>
>> This. This a million times.
>
> I found little correlation between cable length and cable
> resistance when I measured lots of them. Indeed, two of
> the three best ones I had were 1m cables, and most of the
> rest were shorter.
>

Well it will be a function of conductor size. And whilst some thick
cables will be all insulation and no conductor, on average thicker will
have more conductor and hence less resistance and voltage drop.

I have many cables and in my statistical valid sample size of about 25,
I have one thin, very flexible cable that works well and many thin
cables that are not good. The thin one that works is branded Nokia and
came with a Nokia E71. The poor ones show consistently poorer transfer
rates and slower charge times when used with phones etc.

I have a few flat, rectangular cables that are good and just recently
bought stripey cotton covered cables (looks like miniature iron cable)
that are very good. Performance and feel and fit of the connectors is
good (from China via eBay direct, 3 for £5 inc p&p). In general bulky
cables are more durable and work better including several 2m long ones.

So, a rule of thumb, thin cables are in general worse for high current
use but it depends on who made it and from what.

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