2 x Powerball Counter Batteries to use with any recent model Powerball Counter.

Battery Typ: SR 626 SW/377 1.55V

Instructions to replace batteries:

1. Peel of the orange label which says “For RPM Meter”
2. Gently lift counter from shell.
3. Unscrew the the six small screws
4. Remove batteries and replace (remember right polarity)
5. Screw counter logic board back on
6. Place counter back on shell.