The rechargeable lithium battery eliminates the coin cell replacement cycle that characterized earlier Garmin pedal systems. A full charge provides 90 hours of ride time, and quick charging delivers 12 hours of operation from 15 minutes connected to USB-C power. Two magnetic charging clips attach to contacts on each pedal spindle without requiring disassembly. Travel mode puts the pedals into sleep state during transport, which prevents battery drain when bikes sit in travel cases or vehicle mounts. Battery status displays on paired Garmin devices and through the Garmin Connect mobile application.

Pedal IQ smart calibration monitors temperature changes, time since last calibration, and whether you've moved the pedals between bikes. The system alerts through connected devices when recalibration would improve accuracy. Manual calibration requires the pedals to be unweighted with cranks positioned horizontally, which takes approximately 30 seconds. The calibration data stores in the pedal spindles, so it transfers when you swap pedal bodies rather than requiring recalibration with each body change.

Force data reveals the relationship between power output and cadence changes when paired with compatible Garmin cycling computers or smartwatches. This metric helps identify optimal cadence ranges for different power targets and terrain types. The data integrates with Garmin's training platforms and exports to third-party applications including TrainingPeaks, Strava, TrainerRoad, and Zwift. The pedals work with oval chainrings without requiring special calibration modes or adjustment factors.

The carbon polymer pedal body construction reduces weight compared to metal alternatives while maintaining stiffness under pedaling loads. The large platform distributes force across the shoe sole, and the three-bolt SPD-SL interface provides secure cleat engagement with adjustable float depending on cleat choice. Spring tension adjusts with a 3mm hex key to customize entry and release force. The sealed bearing system uses cartridge bearings that resist contamination from road spray and require standard bearing replacement procedures when worn.

Spindle swapping between pedal body types requires an 8mm hex key, pedal wrench, and approximately 10 minutes per pedal. The Rally XC bodies accept Shimano SPD cleats for off-road or gravel applications, while Rally RK bodies use Look Keo cleats for riders who prefer that system over SPD-SL. This modularity extends the power meter investment across bike transitions or discipline changes. Both spindles must use the same pedal body type simultaneously—you can't mix RS and XC bodies on the same bike. The 53mm Q-factor matches most road cranks without requiring spacer washers.