Abee V31 Dashcam Compatible Battery 3.7V 450mAh

Abee V31 / V35 / V51 / M3 — 3.7V Li-Polymer Replacement Battery

This 3.7V, 450mAh Li-Polymer cell replaces the internal battery in the Abee V31, V35, V51, and M3 dashboard cameras. These are compact in-car recording units used for journey footage and parking surveillance. When the original cell degrades, the dashcam loses its ability to save clips on shutdown or sustain parking mode — this cell restores that function.

• V31 / V35 / V51 / M3 platform: These four Abee models share the same internal cell format — 35.60 × 24.60 × 5.80mm footprint, single-cell 3.7V nominal, with a connector and BMS handshake consistent across the range. One cell fits all four.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS accepted charge without triggering protection cutoff, and the cell held voltage within the expected window across multiple cycles.
• Parking mode calibration after install: After fitting a new cell, complete one full drive with the dashcam powered via the vehicle's USB or hardwire kit before relying on parking mode. The dashcam's power management needs one full charge cycle against the new cell to accurately gate parking mode duration.

Parking mode recording cutting out earlier than expected

Parking mode on the V31 and V35 draws continuously from the internal cell while the vehicle is off. A degraded original cell may only deliver a fraction of its rated capacity, so recording stops well before the camera's configured parking mode window ends. A fresh 450mAh cell restores the full energy budget the dashcam expects. If parking mode still cuts short after fitting this cell, check that the dashcam firmware's parking mode duration setting hasn't been capped at a lower value than the battery can support.

Footage corrupt or files missing after the vehicle is switched off

When the engine cuts, the dashcam needs a brief burst of internal battery power to finalise and write the last video file to the card. If the internal cell is too depleted to supply that power, the write process is interrupted mid-file, leaving the clip corrupt or absent from the card. This is one of the earliest signs the internal cell is failing — it may still appear to record normally during driving. Replacing the cell and formatting the card resolves this; verify the card reads clean with no file system errors before the next trip.