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I have been seeing this photo on many pages on Facebook saying that FIFA World Cup balls are getting charged.

I heard that the new balls have sensors but I really doubt they need a battery.

Are FIFA World Cup balls really and necessarily chargeable?

enter image description here

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  • How do you think the sensors work without a battery?
    – Philip Kendall
    Nov 28, 2022 at 12:13
  • @PhilipKendall There are long-live batteries that you do not need to charge
    – asmgx
    Nov 28, 2022 at 22:47
  • But you wrote “I doubt they need a battery”, which is very confusing given that comment.
    – Tim
    Dec 2, 2022 at 18:26

1 Answer 1

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Yes, the balls do need charging for an internal energy source (i.e. a battery).

This battery is what powers some of the electronics and sensor equipment inside the ball, and of course the radio equipment used to send that data out for FIFA's video assistant referee to use.

From the manufacturer, adidas,

  • Connected ball technology comes to Al Rihla for sport’s biggest stage, providing the VAR team with precise ball data in real time to support fast and accurate offside calls
  • A new adidas Suspension System will allow for the most time-precise motion sensor to ever be used inside a World Cup Official Match Ball, tracking every touch of the game at a rate of 500 times per second
  • The 500Hz inertial measurement unit (IMU) motion sensor inside the ball will enable the collection of very accurate ball movement data and transmission to Video Match Officials within seconds throughout the tournament

...

A new adidas Suspension System in the center of the ball hosts and stabilizes a 500Hz inertial measurement unit (IMU) motion sensor, which provides unprecedented insight into every element of the movement of the ball, while making this technology unnoticeable for players and not affecting its performance whatsoever. The sensor is powered by a rechargeable battery, which can be charged by induction.

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