theauthorities – Member
how can i tell what are “quality” cables?
I’ve got maybe 30 USB cables knocking around from gadgets over the years. Cheap and expensive ones. All do the job and not one has caused issues with charging.
A lot of charging issues are down to the default 500mA current yet device wanting 1 or 2A. All depends what you plug it into.
Connect to a PC and you might only get 500mA or you might get more, but depends on the PC and often the particular port you connect to. And then some PCs or devices will drop to 500mA if the connection is data as well as charge. If you short out the data line it may then draw the full rate. You can get fast charge adapters you stick on the end of the cable which do just that and are fairly cheap.
Plug into a mains powered USB socket and you still may only get 500mA. Either because the socket only delivers that or again because of the data line. This time because some USB charger sockets don’t short out the data on their side so the phone thinks it’s connected to a PC. Again an adapter to short it out sorts the issue. That’s with the kind of sockets/chargers you plug an ordinary USB cable into. A dedicated USB charger brick with cable sticking out of it isn’t a problem, except when you use the wrong one that’s rated for a lower current.
Then you have gadgets that just can’t charge via standard 5V USB, so they do non standard stuff and require a dedicated charger. My Dell Venue tablet charger runs at 5V 2A for ordinary devices but plug the tablet in and it gets 12V 2A – 24W charge, and that’s the only time it will not take days to charge.