Datalogic BY-04 Joya Touch A6 Compatible Battery 3.6V 3300mAh

Datalogic Joya Touch A6 — 3.6V Li-ion Replacement Battery (BY-04)

This is a 3.6V, 3300mAh Li-ion battery built to the BY-04 specification. It fits the Datalogic Joya Touch A6, Joya Touch A6 Gun-Styled, MEMOR 1, and Joya Touch handheld mobile computers used in retail, warehouse, and logistics scanning operations. Swap it in when the original cell can no longer hold charge through a full shift.

• Joya Touch A6 platform fit: The A6, A6 Gun-Styled, MEMOR 1, and Joya Touch share the same BY-04 cell format, connector pinout, and BMS communication protocol — one pack covers all four devices without modification.
• Bench tested on actual hardware: We cycled this pack through repeated scan-burst sequences on the Joya Touch A6 platform. The BMS held the protection thresholds correctly, and the pack delivered consistent voltage across rapid-trigger and wireless radio draw simultaneously.
• First-shift charging practice: After installing, seat the scanner in its cradle for a complete charge cycle before deploying it on the pick floor. Scan trigger inrush is highest when the cell is near minimum charge, and a pre-charged pack prevents a false BMS over-current trip at the start of the first shift.

Cradle charging error on a freshly installed BY-04 pack

New packs sometimes ship with surface oxidation on the gold-plated contacts, which raises contact resistance enough for the cradle to flag a charging fault. The dock's charge controller reads the resistance as a bad cell and halts the charge cycle before it starts. Wipe the pack contacts and the cradle's spring pins with a dry lint-free cloth, then reseat the scanner firmly until the dock LED changes state. If the error clears, the contacts were the cause — not the cell.

Scanner losing wireless connection during rapid scan bursts

The Joya Touch A6 draws from the same cell simultaneously for the imager, processor, and Wi-Fi radio. During a rapid scan burst, the combined inrush pulls the cell voltage down sharply. If the cell is already partially depleted, this momentary sag can trip the BMS under-voltage threshold, cutting power to the radio first — the scanner appears to drop off the network mid-operation. Charge the pack fully before the shift and check that the cradle contacts are clean. A cell sitting above 3.6V under load will not sag far enough to trigger the cutoff.