Datalogic Falcon PT40 Replacement Battery 3.7V 900mAh Li-ion

Datalogic Falcon PT40 / Falcon PDT — 3.7V Li-ion Replacement Battery (95A201004)

This is a 3.7V, 900mAh Li-ion battery for the Datalogic Falcon PT40 and Falcon PDT handheld mobile computers. It slots directly into the battery bay and uses the same contact arrangement and BMS handshake as the original Datalogic 95A201004 pack. Capacity listed here is from the product data — 3.33Wh.

• Falcon PT40 and Falcon PDT compatibility: Both devices share the same 3.7V single-cell architecture, battery bay dimensions, and contact pin layout. The BMS on each unit reads the same charge state registers, so one pack works across both without modification.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the PT40 platform. The onboard BMS accepted the cell, completed a full charge cycle without fault codes, and the scanner powered on and held idle state as expected.
• First-shift pre-charge on pick-and-pack lines: Before using this pack on a live shift, seat it in the charging cradle and let it complete a full charge cycle. The scan trigger draws a short inrush current at the moment of every scan, and that spike is highest when the cell is near its lower voltage threshold. A fully charged cell prevents the BMS from tripping on that first burst before the pack has conditioned itself.

Cradle showing a charging error after fitting a new pack

Charging cradle errors on a new pack are almost always a contact resistance problem, not a fault with the cell itself. The PT40 cradle uses spring-loaded gold contacts, and any oxidation or debris on the battery's contact pads raises resistance enough for the dock to flag an error. Wipe the three contact pads on the battery with a dry lint-free cloth, reseat the pack firmly into the cradle, and press down until you hear the latch click. If the error clears, the contacts were the cause — the pack itself was fine.

Scanner losing wireless connection during rapid scan bursts

The PT40 draws simultaneously from both the wireless radio and the scan trigger when a burst scan happens — the radio is mid-transmission at the same moment the imager fires. On a degraded or deeply discharged cell, that combined draw causes the voltage to sag below the radio module's minimum threshold, which drops the connection. This is not a radio fault — it is a voltage sag event at the cell level. Fit a fully charged pack and confirm the scanner's supply voltage stays above 3.4V during burst scanning before returning the unit to the floor.