MagSafe green light blinking

I have a MagSafe charger where the green light is blinking - never had that before in all the years I have owned Macs.I wonder if anyone knows what that means.

I have already gone through all the normal steps, resetting things on the Mac etc.

If I plug in another MagSafe charger everything works fine, so that suggests the Mac and battery are OK.
Don't currently have another MacBook Pro to check the charger on it - will have a second one next Saturday.

But in the meantime - has anyone ever...

MagSafe green light blinking

via Canadian Mac Forums at ehMac https://ift.tt/sjxQE7q