Garmin Barklimiter Deluxe Compatible Battery 3.7V 400mAh

Garmin Barklimiter Deluxe — 3.7V Li-Polymer Replacement Battery (361-00069-00)

This 3.7V, 400mAh Li-Polymer battery replaces part number 361-00069-00 in the Garmin Barklimiter Deluxe and Delta Sport bark control collars. It restores power to the collar's vibration and sound correction circuits after the original cell degrades over charge cycles. Dimensions are 36.55 × 24.94 × 5.40mm — measure your existing cell before ordering if you are unsure.

• Barklimiter and Delta Sport compatibility: These collars share the same battery bay dimensions, connector pinout, and BMS handshake at 3.7V nominal. The same cell covers both platforms without modification.
• Bench tested on actual hardware: We cycled this cell through the collar's charge circuit and confirmed the BMS accepted the charge without fault flags. Vibration and sound correction outputs held steady at rated voltage across the test cycle.
• First power-on after installation: Place the collar on charge for a full cycle before putting it on the dog. The bark correction calibration sequence runs during first boot, and an incomplete charge can cause the collar to reset mid-session.

Why the Barklimiter Deluxe stops triggering corrections before the battery reads empty

The correction circuit draws a short burst of current each time the collar activates. As the Li-Polymer cell ages, internal resistance rises and voltage sags during those bursts — even if the resting voltage still reads adequate. The BMS interprets the sag as an undervoltage event and cuts the output before the collar's fuel gauge registers low. A fresh cell with lower internal resistance eliminates the sag and restores consistent correction delivery.

Collar showing solid charge light but not powering on after battery swap

This usually means the BMS on the new cell entered protection mode during shipping — a common state for Li-Polymer cells stored at low voltage. The charge light responds to the charger's presence, not the cell's readiness. Connect the collar to the Garmin charger for at least 30 minutes before attempting to power it on. If the collar still won't start, disconnect and reconnect the charger — this resets the BMS and allows the charge circuit to re-initialise from 3.0V.