About this replacement
RTI T1 / T2 Series — 3.7V Li-ion Replacement Battery (ATB-950)
This is a 3.7V, 750mAh Li-ion replacement battery for the RTI T1, T1B, T2, and T2+ wireless remote controls. It slots into the original battery compartment and restores full operation to your RTI remote. Use the OEM part number ATB-950 to confirm this is the correct cell before ordering.
- T1, T1B, T2, T2+ compatibility: These RTI remote models share the same battery bay dimensions, voltage requirement, and connector configuration — all accept the ATB-950 cell without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the T1 platform. The battery accepted a full charge without fault and maintained stable voltage output across IR transmission bursts at varying frequencies.
- Single-cell remote tip: The RTI T1 runs on one cell. If the remote sat unused for an extended period, the battery may have self-discharged below normal startup threshold — connect it to a charger for at least 30 minutes before testing the remote.
Why the RTI T1 stops responding before the battery is fully flat
Li-ion cells in low-draw devices like remotes don't fail all at once. As the cell ages, internal resistance climbs. The remote's IR LED demands a short burst of higher current to fire — and an aged or partially discharged cell can't deliver that burst cleanly. The remote appears to have power but commands drop out. Replacing the cell at this point, rather than waiting for a complete shutdown, prevents the BMS from locking out a deeply discharged battery.
Remote not responding at all after fitting the new battery
This is almost always polarity. The ATB-950 is a flat Li-ion pouch or prismatic cell with a connector — check that the connector is fully seated and that the positive and negative leads match the bay markings. A partially inserted connector will show no response identical to a dead battery. Re-seat the connector firmly and confirm the remote's LED flashes when any button is pressed. If it still won't respond, measure the cell voltage — a fresh cell should read 3.6V or above.