You got it, PaulLeadbeater! I've long been saying here that Kobo uses all 5 pins, whereas the standard micro-B connector doesn't use pin 4. We still don't know what's in the "lump" in the cable. Some have talked about a resistor. There have been posts here from folks whose dogs have chewed up the charger cable, but nobody has been handy enough to repair it or diagnose the connections and report back. Now someone should try a 2-amp 3rd party charger with pins 4 & 5 shorted and see what it does.
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