You have 3 options here: 1) Use AC adapter for
fast charging. 2) Use micro-USB or
wireless
charger
for standard charging.  NOTE: Micro-USB charging
is faster than wireless charging,
recommended USB adapter output power 10W(5V, 2A).  3) For wireless charger it
is recommended
to use USB adapter with minimum of 10W (5V, 2A) output power.