ZEBEX Z-3190BT Barcode Scanner Replacement Battery 3.7V 2000mAh

ZEBEX Z-3190BT / Z-3191BT / Z-3192BT — 3.7V Li-ion Replacement Battery

This 3.7V 2000mAh (7.4Wh) lithium-ion battery fits the ZEBEX Z-3190BT, Z-3191BT, and Z-3192BT wireless barcode scanners. All three models share the same battery bay, connector, and BMS communication protocol, so one pack covers the entire line. Capacity is sourced from the product data — 2000mAh at 3.7V nominal.

• Z-3190BT / Z-3191BT / Z-3192BT platform fit: These three ZEBEX scanners share a common battery form factor, pin layout, and BMS handshake. The voltage rail and physical envelope are identical across the series, so one replacement pack works in all three without any modification.
• Bench tested on actual hardware: We cycled this pack through repeated scan-and-transmit bursts on the bench, monitoring the BMS cutoff response during combined laser trigger and Bluetooth radio draw. The protection circuit held stable across the full discharge curve with no premature cutoffs recorded.
• First-shift preparation for pick-and-pack: Before putting this pack into a scanning shift, seat it in the cradle and let it complete a full charge cycle. The scan trigger inrush current spikes highest when the cell is near its minimum state of charge — a fully charged cell avoids false BMS trips at the start of the first shift.

Cradle showing a charging error on a new pack

Charging docks on the Z-3190BT series are contact-sensitive. If the gold pogo pins on the cradle or the contact pads on the battery pack have oxidation or debris, the dock reports a fault rather than beginning a charge cycle. Remove the pack, wipe both contact surfaces with a dry lint-free cloth, then reseat the scanner firmly until it clicks. The charging indicator should switch to active within 10 seconds of correct contact.

Scanner dropping wireless connection during rapid scan bursts

During fast back-to-back scanning, the Bluetooth radio and the imager or laser fire almost simultaneously, creating a combined inrush draw that momentarily sags the cell voltage. If the pack is already low, this sag can cross the BMS undervoltage threshold and briefly cut the radio link — the scanner appears to freeze or drops its host pairing. Returning the scanner to the cradle for a partial top-up resets the BMS and restores the voltage headroom needed for sustained burst scanning. Keep the pack above 50% charge during high-frequency pick-and-pack runs to prevent the sag from reaching cutoff.