I bought over a half-dozen "Hype Volt" 6.8Amp USB chargers for stuffing the Christmas stockings: https://i.imgur.com/Zavgm4B.jpg
I kept one for myself, but, when I used it last night on an iPad and on an Android phone, the iPad lightning cable melted!
When I pulled it off the iPad, it was noticeably extremely hot, but it doesn't seem to have damaged the iPad (AFAIK).
So, I'm just wondering what happened, and, more importantly, when I look at the specs for this device, they don't make sense to me, so, I have difficulty troubleshooting what the problem is/was.
Here are all the specs off the package and off the device: DGL Group Ltd. Hype Volt HV-6PT Model: HC363-5U (also listed as HV-6PT-WHT) Input: AC 110VAC/60Hz - 220VAC/50Hz (800mA max) Output: DC 5V, 6.8A total Maximum Power: 40W Supercharge: 5V@2.4A maximum Universal: 5V@1A maximum
Description: (Amazon.com product link shortened) http://www.walmart.ca/en/ip/hype-volt-68a-wall-adapter-with-5-usb-ports/6000193376994
My questions are varied, because I don't understand how it works, nor how it could have overheated the cable to the tablet.
Here's what it says on the package: "Smart USB Technology: This adapter automatically adjusts power output to fit your charging device. Tablets and e-readers require 2 Amp charging, and this adapter will reroute power to the appropriate USB port you use." "Charging Combinations: - 2 tablets + 3 mobile devices - 1 tablet + 4 mobile devices - 5 mobile devices - 3 tablets"
I am confused about both the pure math and how this operates.
Q1: Since 6.8A times 5VDC is only 34Watts (not 40 Watts), how can they very clearly label it as a 40Watt device?
Q2: How does the device "know" to give tablets 2.4 Amps (12 Watts) but a "mobile device" only 1Amp (5 Watts).
Q3: What if a mobile device "wants" more than 1 amp? Does the charger give more than 1A to the device?