Uno Attack uses C-size alkaline batteries, and you need three of them for the launcher to work properly.

Battery type and quantity

  • The official Mattel instructions specify that UNO Attack (also written UNO Attack!) requires 3 C size alkaline batteries.
  • Multiple product listings and Q&A sections for the game also confirm that the launcher runs on 3 C batteries.

Important battery details

  • The manufacturer recommends using alkaline batteries only, noting the toy may not function correctly with other battery types.
  • The batteries are not included in the box, so they must be purchased separately before playing.

Quick usage notes

  • The battery compartment is on the bottom of the card launcher and opens with a Phillips screwdriver.
  • Insert all three C batteries with the correct polarity and replace all of them at the same time when they run low for best performance.

Mini FAQ

  • Can I use rechargeable or mixed batteries?
    The safety notes advise against mixing old and new batteries or different types (alkaline, carbon-zinc, rechargeable) in the unit.
  • Does every version of UNO Attack use 3 C batteries?
    Both older and newer launcher versions described in rule and rules-explainer documents state that they use 3 C-size batteries.

Information gathered from public forums or data available on the internet and portrayed here.