K3 sometimes won't charge
Anyone else had a problem with a K3 which is sometimes reluctant to charge? Very often I have to make two attempts before anything happens -- after an overnight session the back is still cool (should be warm when charging) and I have to unplug and plug in again for another 5 or 6 hours, when it gets warm and the green light then finally appears.
Been like this for a while, and the unit is 'way out of warranty. Anyone else shed any light on this?
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