Telxon TSC1 Data Collector Replacement Battery 7.4V 3400mAh

Telxon TSC1 Data Collector — 7.4V Li-ion Replacement Battery

This 7.4V, 3400mAh (25.16Wh) lithium-ion battery fits the Telxon TSC1 mobile data collector. The TSC1 is a handheld terminal used for barcode scanning, inventory management, and field data collection in retail and warehouse environments. It replaces a degraded original pack and restores normal device operation.

• TSC1 platform fit: The TSC1 runs its scanner, display, and radio stack from a single 7.4V rail. This pack matches that voltage requirement and uses the same connector orientation and BMS communication protocol as the original, so the device reads cell state correctly from first boot.
• Bench tested on actual hardware: We cycled this pack through full charge and discharge on the TSC1 platform. The BMS held the charge curve steady and responded correctly to the scanner module's current draw at startup — no false cutoff events across multiple cycles.
• TSC1 scanner module warm-up tip: After fitting a new pack, run a full scan session before deploying the unit in the field. The TSC1 maps battery state during active scanning, and the first cold boot on a new cell can cause the low-battery indicator to trigger early on subsequent short sessions if the device has not yet completed that mapping pass.

BMS cutoff when the TSC1 scanner module initialises

The TSC1's barcode scanner draws a short current spike at the moment it initialises — typically when the unit wakes from sleep or the scan trigger is pressed for the first time after idle. On a degraded original pack, internal resistance is high enough that this spike causes the cell voltage to sag below the BMS protection threshold, triggering a shutdown. A fresh pack with lower internal resistance handles the spike without the voltage drop crossing that cutoff point. If shutdowns happen specifically at scan trigger press, the pack is the cause, not the scanner module.

TSC1 shuts down mid-session during USB data transfer to the host PC

USB data transfer on the TSC1 runs the radio, display, and USB controller simultaneously — a combined load that exceeds what the device draws during normal scanning. On a worn cell, sustained voltage under this combined draw drops below the BMS cutoff before the transfer completes. This results in an abrupt shutdown mid-transfer, not a low-battery warning. A replacement pack at full charge should sustain the combined USB transfer load without a voltage drop below 6.0V at the terminals.