Left your charger at your ex-wife's house?
Or maybe you want to have a second one at the office.
Either are plausible. Here's the original D-Power charger with mains lead and three prong mains UK plug. If you need a different plug, please ask and we have what you need.
AC100-240v
OUTPUT: 54.6v - 3.0A
We have US specific chargers for 110V systems here.