How to Replace a Nike Triax 50 Battery

by Meredith Jameson ; Updated September 28, 2017

The Nike Triax 50 watch is a sports-style watch for both men and women that feature an oval watch face and a diagonal display. The band is made from polyurethane and the dial window is mineral based. The watches can be purchased online or at authorized Nike retailers and offer standard day-date display and water resistance. As with almost all watches, the watch battery in the Nike Triax will eventually need to be replaced, requiring the use of a case back wrench (available at many watch repair stores) or a standard screwdriver.

Items you will need

  • Standard screwdriver
  • Case back wrench
  • Watch battery
Step 1

Set the watch face-down on a soft surface, such as a towel.

Step 2

Use the flat edge of a standard screwdriver to lift open the back of the watch by placing it in the indent on the side of the watch and lifting up.

Step 3

Lift out the old watch battery and set a new one in its place. The old battery can be used as a guide to purchase a new watch battery. Watch batteries are available at most grocery stores, drugstores or watch repair stores.

Step 4

Set the case back on the watch.

Step 5

Align the indent on the case back with the indent on the side of the watch. Press gently into place.

Step 6

Reset the watch, if necessary.

About the Author

Meredith Jameson writes early childhood parenting and family health articles for various online publications. She holds a Bachelor of Arts in history from San Francisco State University.