I am just an ancient retired Electronics Engineer, but I cannot see how a QC3/4/5 charger is going to help my charging. My tests were done with the same charger and cable and three different devices that needed to be charged. The only parameter that was changed was the devices, and they charged at different rates so the implication to me is that the charging circuitry in the phones is limiting the current. This test was repeated with as said below with 6 chargers.
Peter On 04/05/2023 05:10, Hugh Frater wrote:
Ah, the joys of USB charging protocols. It’s taken nearly 20yrs and they still haven’t got a reliable, performant solution. USB-pd gets it nearly correct, but it’s still not perfect. Slow charging speeds are also very much caused by the cable type. Back when I was charging micro-usb based smartphones I went through a handful of cables and anything that negotiated at <2a went in the bin. There really is a lot of junk out there. A USB power meter and a qc3 compatible charger is a good starting point. On Wed, 3 May 2023 at 18:19, Peter Merchant <petermerch...@hotmail.com> wrote: >> I didn't make last night. My problem is the Android phone which I use >> for Jitsi now stays permanently ‘Awake’, burning through 100% of battery >> in about four hours. The battery chart's detail has ‘Media’ as one of >> the top two users, but the percentage of all those that are listed is >> well under 50%. I suspect Media though because clicking it shows it is >> Awake for 100% of the time and used CPU for about 50% of it. Perhaps >> that's a dual-core thing. What app is this battery chart? SWMBO keeps complaining that her tablet doesn't hold a charge overnight, and I wonder what she has running. I have just installed Accubattery. Dear S-in-L who is an Electrical Engineer, suggests getting a better charger with more oomph. All of the chargers that I have are rated at 5V/1A. Charging the two phones in the house shows the device drawing approx 500ma, and the same charger on my tablet is giving >1A. I have repeated this on about 6 chargers. So it ain't the fault of the charger. [ I just plugged my tablet into a powerbank, and it is getting ~667mA. ] Peter-- Next meeting: Online, Jitsi, Tuesday, 2023-06-06 20:00Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk -- Sent from my iPhone
-- Next meeting: Online, Jitsi, Tuesday, 2023-06-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
