A fresh set of alkaline batteries should last, depending on amount and type of use, up to 35 hours. This can vary greatly based on certain factors, such as Wii Remote Speaker Volume, Rumble, battery quality and age, and type of game being played.

Important Note: If you are using rechargeable batteries, the only type of battery recommended are Nickel Metal Hydride batteries. When it comes to using rechargeable batteries, you must follow manufacturer guidelines for safety and proper usage. Failure to do so could cause damage to the Wii Remote and void the warranty.

There are two ways to check the Wii Remote's battery levels:

• Remove the battery cover and press the Red "Sync" button. The number of lights flashing indicates the Wii Remote's battery strength. Four flashing lights indicates full strength, with one light flashing indicating the lowest level.
  
  
  
  
  or

• Use the HOME Menu to check battery level of each Wii Remote:
  
  
  1. Press the HOME Button on a Wii Remote that is synchronized with the Wii console.
     
     
     
     
  2. Select the Wii Remote Settings option from the Home Menu.
     
     
     
     
  3. The battery level of all synced Wii Remotes is displayed along the bottom. Four bars indicates a full charge, with one being the lowest charge.