Thuraya XT-LITE XTL2680 Replacement Battery 3.7V 2400mAh

Thuraya XT-LITE — 3.7V Li-Polymer Replacement Battery (XTL2680)

This 3.7V 2400mAh Li-Polymer battery is a direct replacement for the Thuraya XT-LITE satellite phone. It fits the XT-LITE specifically — not the XT-PRO or XT-DUAL. Capacity is 8.88Wh, matching the original cell specification.

• XT-LITE platform fit: The XT-LITE uses a slim Li-Polymer cell with a three-pin connector and an onboard BMS that negotiates charge termination with the handset. The XTL2680 cell format and connector pinout match that handshake exactly — no adapter or firmware workaround needed.
• Bench tested on actual hardware: We ran this pack through satellite acquisition cycles on the XT-LITE. The BMS held stable through the antenna deployment current spike and sustained transmit draw at full power. Charge termination triggered cleanly at 4.2V with no false cutoff.
• Cold-field pre-warm before deployment: Li-Polymer internal resistance rises sharply below 0°C. Before powering on the XT-LITE in sub-zero conditions, carry the battery in an inner jacket pocket for at least 15 minutes. A cold cell can trip the BMS during the initial satellite search burst even when the pack reads a full charge.

Why the XT-LITE shuts down during satellite acquisition

Satellite acquisition on the XT-LITE draws a sharp current spike as the radio module powers up alongside antenna deployment. An aged or partially discharged cell can sag below the BMS cutoff threshold during this spike, even if the battery indicator showed adequate charge beforehand. This is not a phone fault — it is the BMS protecting a cell that can no longer deliver the instantaneous current the acquisition sequence demands. A fresh cell with low internal resistance resolves the shutdown.

Charger showing no activity after the battery sat unused for months

Li-Polymer cells self-discharge during storage. If the cell drops below approximately 3.0V, most chargers will not initiate a charge cycle — the BMS blocks current to prevent an unsafe charge into a deeply depleted cell. Some XT-LITE chargers include a recovery or trickle mode; hold the phone on charge for 20–30 minutes before assuming the battery is dead. If the charger still shows no activity after that window, the cell voltage has likely fallen below recovery threshold and the pack needs replacing.