Equinux tizi Mobile TV Compatible Battery 3.7V 1200mAh

Sonstige Equinux tizi Mobile TV — 3.7V Li-ion Replacement Battery

This 3.7V, 1200mAh Li-ion cell is a direct replacement for the Equinux tizi Mobile TV portable receiver. The tizi was a compact over-the-air TV tuner that ran on battery power for mobile viewing. Swap this cell in when the original no longer holds a usable charge.

• tizi platform fit: The tizi's compact PCB draws a steady low-current load from a single Li-ion cell at 3.7V nominal. This cell matches that voltage rail and the original's physical footprint at 53.00 × 33.90 × 5.70mm, so the connector and housing seat correctly without modification.
• Bench tested on actual hardware: We cycled this cell under a sustained low-draw load matching the tizi's tuner and display circuit. The BMS held stable cutoff at the correct low-voltage threshold and did not trip spuriously under normal operating current.
• First-cycle calibration on the tizi: After fitting, run the tizi from a full charge down to automatic shutoff before recharging. The tizi's fuel gauge reads against a stored discharge curve — one complete cycle lets it lock onto the new cell's actual capacity rather than the degraded profile of the old cell.

Why the tizi reports wrong battery percentage after a cell swap

The tizi's fuel gauge IC stores a discharge curve calibrated to the original cell. A new cell has a different internal resistance and discharge profile, so the stored curve no longer maps accurately to actual state of charge. The gauge will show percentage values that do not reflect real remaining capacity until it recalibrates. Run one full discharge-to-shutoff cycle followed by a complete charge to reset the reference curve.

tizi shuts off unexpectedly before the battery indicator reads empty

This happens when the cell voltage drops below the BMS protection threshold under load, even though the gauge still shows charge remaining. On a new cell, this is almost always a calibration issue — the gauge is reading from an old curve and the true voltage cliff arrives earlier than predicted. If it persists after one full calibration cycle, check that the cell connector is fully seated, as a loose contact raises effective resistance and causes premature voltage sag. After reseating, charge fully to 4.2V before the next use.