Dogtra Transmitter 280C Compatible Battery 3.7V 450mAh

Dogtra Transmitter 280C / Transmitter IQ — 3.7V Li-Polymer Replacement Battery (AE562438P6H)

This 3.7V 450mAh lithium-polymer battery fits the Dogtra Transmitter 280C and Transmitter IQ handheld remote units. These are the controller-side transmitters used to send signals to Dogtra receiver collars during dog training. It replaces OEM part numbers AE562438P6H and BP37T3P.

• Transmitter 280C and IQ compatibility: Both remotes share the same battery bay dimensions, voltage rail, and connector pinout. At 41.10 × 24.10 × 6.00mm, this cell fits the cavity without modification and maintains the correct contact pressure on the PCB terminals.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Transmitter IQ unit and confirmed the protection circuit handles over-voltage cutoff and under-voltage lockout correctly. The BMS re-engaged cleanly after a low-state discharge without requiring a manual reset.
• Transmitter storage between training sessions: If the remote sits unused for several weeks, charge it to around 50–60% before storing. Li-polymer cells in compact transmitters degrade faster when stored at full charge than when stored at mid-state.

Why the Transmitter 280C shows a full charge but dies quickly in the field

Li-polymer cells lose capacity unevenly. The fuel gauge in the transmitter reads state-of-charge against a stored voltage curve, not actual amp-hour capacity. Once the cell ages past a certain point, it hits the under-voltage cutoff well before the gauge reaches zero. The transmitter shuts down mid-session not because the battery drained slowly — but because the usable window between full charge and cutoff voltage has compressed. A fresh cell at 450mAh restores the full working range.

Transmitter IQ not powering on after battery swap

If the unit stays dark after installing the new cell, the battery protection circuit may have tripped during shipping and needs a small activation current to reset. Connect the transmitter to its charger for 10–15 minutes before pressing the power button. This pushes enough current through the BMS to release the lockout state. If the charge LED still does not illuminate, check that the battery contacts are seated flat — the 6.00mm cell thickness is precise, and a slightly raised edge can break the circuit.