GARMIN RALLY XC100 Power Dropouts

Rally Battery Door Kit

The original battery doors are prone to mechanical relaxation, leading to insufficient compression of the battery against the internal terminals. This kit provides updated doors with reinforced threading and optimized spring-loaded contacts to prevent micro-interruptions in power. Ensuring a stable voltage rail prevents the sensor from rebooting during high-vibration events.

SKU: S00-01538-00

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Battery Carriage Replacement Kit

If the dropout persists with new doors, the internal battery carriage (the board holding the contact leaves) has likely suffered from plating wear or deformation. Replacing the carriage restores the gold-plated contact surface area, reducing electrical resistance and mitigating the effects of fretting corrosion common in pedal-based power meters.

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CR1/3N Lithium Battery

The use of dual LR44 batteries introduces an additional contact point (the interface between the two batteries) which doubles the risk of contact failure via vibration. Switching to a single CR1/3N cell removes one point of failure, providing a more stable continuous power supply to the pedal's strain gauge transmitter.

SKU: CR1/3N

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