About this replacement
Prestigio RoadRunner 505 — 3.7V Li-ion Replacement Battery (ICR533443)
This 3.7V 900mAh Li-ion cell replaces the internal battery in the Prestigio RoadRunner 505 and PCDVRR505 dashcams. It restores the camera's ability to buffer power during ignition cycles and sustain parking mode recording when the vehicle engine is off. OEM part number ICR533443, dimensions 46.20 x 34.14 x 5.68mm.
- RoadRunner 505 and PCDVRR505 compatibility: Both models share the same internal cell format, connector pinout, and BMS handshake. The ICR533443 cell fits the same housing slot and communicates correctly with the dashcam's charge controller on either variant.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a dashcam test rig. The BMS held cutoff at the correct low-voltage threshold and accepted a full charge without triggering overcharge protection faults.
- Parking mode calibration after install: After installing a new internal cell, complete one full drive cycle — engine on, full charge, engine off — before relying on parking mode. The dashcam's capacitor management system needs one calibrated cycle against the new cell before parking mode duration stabilises accurately.
Parking mode recording cutting out on the RoadRunner 505
Parking mode draws sustained current from the internal cell with no alternator input to replenish it. A degraded cell hits the BMS low-voltage cutoff faster than expected, ending the recording session early. The RoadRunner 505 does not warn you before shutdown — footage simply stops. A fresh 900mAh cell restores the full parking mode window the camera was configured to deliver.
Footage corrupt or missing after a parking mode session
When the internal cell voltage sags under load, the dashcam can lose power mid-write. The RoadRunner 505 writes footage in rolling segments, and an interrupted write leaves the active file unreadable. Earlier completed segments are unaffected, but the final clip is lost. If this happens repeatedly, check cell voltage under load — a healthy ICR533443 cell should not sag below 3.4V during normal parking mode draw.