Zebra WorkAbout Pro 4 Compatible Battery 3.7V 3300mAh

Zebra WorkAbout Pro 4 / Pro G4 — 3.7V Li-ion Replacement Battery

This 3.7V, 3300mAh Li-ion battery fits the Zebra WorkAbout Pro 4 and WorkAbout Pro G4 rugged handheld computers. These terminals are workhorses in warehouse, retail, and logistics environments — scanning barcodes, tracking inventory, and running wireless sessions across long shifts. When the original cell degrades, scan performance and wireless stability drop before the battery fully dies.

• WorkAbout Pro 4 and G4 compatibility: Both models share the same battery bay geometry, voltage rail, and BMS handshake protocol. One pack covers both generations without modification.
• Bench tested on actual hardware: We cycled this pack through simulated scan-burst and wireless polling loads. The BMS held the correct charge and discharge thresholds across all test cycles, with no false low-voltage cutoffs under combined radio and imager draw.
• First-shift preparation for pick-and-pack operations: After installing this pack, seat the scanner in its cradle and run a full charge cycle before committing it to a shift. The scan trigger inrush current is highest when the cell sits near minimum charge — a fully charged cell prevents BMS trips the first time the trigger is pulled at pace.

Cradle showing a charging error on a new pack

WorkAbout Pro 4 cradles are sensitive to contact resistance at the battery terminals. Debris, oxidation, or an unseated pack can trigger a charging fault even when the battery itself is functional. Wipe the gold contacts on both the pack and the cradle with a dry cloth, then press the scanner firmly into the dock until it clicks. If the error clears within 30 seconds, contact resistance was the cause — not the battery.

Scanner dropping wireless connection during rapid scan bursts

Back-to-back scanning combined with active wireless polling creates simultaneous inrush from both the imager and the radio. If the cell voltage sags below the BMS floor during that combined draw, the terminal can drop its wireless session to protect the circuit. This symptom is more common with a partially charged or aged pack. Charge the battery to 4.2V before starting a high-throughput shift to keep voltage headroom above the sag threshold.