Honeywell 1932G Barcode Scanner Compatible Battery 3.7V 2400mAh

Honeywell 1932G — 3.7V Li-ion Replacement Battery (50139108-001)

This 3.7V, 2400mAh Li-ion battery replaces the original pack in the Honeywell 1932G handheld barcode scanner. It fits the 1932G directly and matches the OEM voltage and capacity spec. Part numbers 50139108-001, BAT-SCN04, and 50139912-001 all apply to this model.

• 1932G battery platform: The 1932G uses a single-cell 3.7V Li-ion pack with a three-pin contact interface that carries both charge current and BMS communication to the cradle. All three OEM part numbers reference the same cell configuration and connector pinout — the housing dimensions are fixed at 105.90 × 21.60 × 25.30mm.
• Bench tested on actual hardware: We cycled this pack on the 1932G and verified that the BMS handshake completed correctly with the dock. Charge acceptance, discharge curve, and low-voltage cutoff all tracked within the expected range for this cell class.
• First-shift prep for pick-and-pack use: After installing this pack, seat the scanner in its cradle and run a full charge cycle before starting a shift. Scan trigger inrush current peaks when the cell is near minimum — a fully charged cell prevents false BMS trips when high-frequency scanning starts cold.

Cradle showing a charging error on a new pack

The 1932G dock reads BMS data through the contact pins on the base of the scanner. If those contacts have oxidation, label adhesive, or debris from warehouse handling, the dock throws a charging fault even though the pack is fine. Wipe the gold contacts on both the battery and the dock with a dry cloth, then reseat the scanner firmly until the charge indicator lights. If the fault clears, the pack was never the problem.

Scanner losing wireless connection during a rapid scan burst

During a fast scan sequence, the imager and the wireless radio draw current simultaneously. On a degraded or deeply discharged pack, that combined inrush pulls cell voltage below the BMS threshold and the radio drops before the imager does — the scanner appears to read but fails to transmit. This is distinct from a dead battery; the device stays on but the connection resets. Charge the pack fully before the shift and check that cell voltage reads at or above 3.6V before high-frequency scanning begins.