Garmin Pro Control 2 RX Replacement Battery 3.7V 2600mAh

Garmin Pro Control 2 RX — 3.7V Li-ion Replacement Battery (361-00022-14)

This 3.7V 2600mAh Li-ion battery replaces OEM part 361-00022-14 in the Garmin Pro Control 2 RX handheld transmitter. It fits the PRO Control 2 remote receiver (010-12400-04) — the handheld unit used to send training cues to dogs at distance. Voltage and capacity match the original spec exactly.

• Pro Control 2 RX transmitter fit: The Pro Control 2 RX and PRO Control 2 remote receiver share the same battery bay, connector pinout, and BMS handshake protocol — one battery covers both units without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Pro Control 2 RX. The BMS accepted the cell without error flags, and the transmitter held its RF link to the collar throughout the test cycle.
• First use after installation: Charge the transmitter to 100% before the first field session. The Pro Control 2 RX draws a short calibration current on first boot after a battery swap — starting from a partial charge can cause the unit to misread state-of-charge on the display for the first few cycles.

Why the Pro Control 2 RX shows low battery immediately after a new cell is installed

The Pro Control 2 RX reads state-of-charge through a fuel gauge IC that tracks cumulative charge and discharge from a known starting point. When a new cell is fitted, the IC has no baseline — it defaults to a conservative low reading until it completes one full charge cycle. Charge the unit fully before the first use and the gauge will recalibrate. After that first complete cycle, the display reading stabilises and tracks accurately.

Transmitter powers on but loses RF connection to the collar mid-session

The Pro Control 2 RX transmitter increases RF output power when range is pushed or terrain is obstructed — this draws a higher instantaneous current than standby operation. If the cell voltage sags below approximately 3.2V under that load, the transmitter's power regulator throttles output and the RF link drops. A cell that reads 3.5V at rest can still sag under peak RF draw if it has accumulated cycle wear. Replace the cell and confirm resting voltage holds above 3.6V before heading into the field.