70mai TPMS Lite User Manual page 7

Battery replacement (when the battery is flat after a long period of use)
1. Use battery removal clamps to turn the sensor housing counterclockwise.
2. Replace the battery with a new lithium battery with the positive (+) side facing up.
3. Check the waterproof rubber ring is intact. Use battery removal clamps to tighten the
sensor housing clockwise.
CR 1632 lithium battery
Waterproof
rubber ring
6