MX Pro TV-Box Remote Control Compatible Battery 3.7V 1200mAh

MX Pro TV-Box Remote — 3.7V Li-ion Replacement Battery (0162C11412786)

This 3.7V 1200mAh Li-ion battery replaces the original cell in the MX Pro TV-Box remote control. It fits the MX Pro TV-Box remote directly, matching the OEM part number 0162C11412786. Swap it in when the original cell no longer holds a charge and the remote stops responding.

• MX Pro TV-Box remote fit: The MX Pro TV-Box remote runs a single Li-ion cell on a 3.7V rail. This battery matches that voltage and the physical footprint — 53.00 x 33.90 x 5.70mm — so it seats correctly against the contacts without forcing or shimming.
• Bench tested on actual hardware: We ran this cell through charge and IR trigger cycles on the bench. The BMS held voltage steady across repeated button presses, and the IR LED output stayed consistent through the full discharge curve.
• Single-cell remote swap tip: This remote uses one cell. When you replace it, check the polarity markings inside the battery compartment before seating the new cell — Li-ion cells installed backwards deliver no voltage to the board and the remote will appear completely dead.

Why the MX Pro remote goes dead immediately after a new battery install

A fresh cell that produces zero response almost always means polarity reversal, not a faulty battery. Li-ion cells have a hard + and − orientation — flip one and the circuit gets no voltage at all. Pull the battery out, match the + terminal to the marking stamped inside the compartment, and reseat it firmly. If the remote still shows no response after correct orientation, press any button while pointing at the TV-Box from under 30cm to rule out IR range issues first.

MX Pro remote working only at very close range after battery replacement

If the remote only registers commands when held within a few centimetres of the TV-Box, the IR LED is not getting enough current to project a strong signal. This usually means the cell voltage has dropped below the threshold the LED driver needs — typically under 3.4V on a Li-ion cell. A brand-new cell at rest reads around 3.7V open-circuit; check yours with a multimeter before assuming the remote board is at fault. If the cell reads below 3.5V straight out of the packet, the cell has self-discharged in storage and needs replacing.