I'll sometimes use the wall wart that came with my Samsung tablet.
As long as the output is 5 volts, high enough mA and the right polarity, should be fine.
But - I'm confused. You say "the batt just died" - and the MVP is a non-replaceable battery.
Or do you mean the wall wart? Or the cord??
If either of those, go to any big variety or electronic store, where you can get both. I usually use a 4 port wall wart, so I can charge more than one
device at a time. And the USB2 to MICRO extension cable will work fine - be sure it's MICRO, not MINI.