[Bad HAL 9000]

Don't disguise the issue though.

Regardless of phone make/model aside from the battery type being lipo/lion vs nicad (all modern phones are li-po [Lithium-polymer])

All mini USB chargers will work the same across phones, the cheapo $7 motorola charger will work just as well as the $35 HTC Pro charger. (Unless there is a difference in the amount of amps it pushes, slower charge vs faster charge)

Probably don't want to exceed 1.5A (1500MA)