Datasheet

Three alkaline cells (such as AA batteries) can be

installed in a battery holder (http://adafru.it/771) to

provide 4.5 Volts. Though larger and heaver than

the fancy lithium-polymer pack, they’re inexpensive

and readily available.

Four nickel-metal hydride (NiMH) rechargeable

cells can similarly be used in a 4-cell battery

holder (http://adafru.it/830) to provide 4.8 Volts.

Make sure you only use NiMH cells in this

configuration. Four alkaline cells (the disposable

type) will output 6V total — that’s too high for some

NeoPixels, and definitely too much for the

microcontroller!