LXE MX9 Replacement Battery 11.1V 3400mAh 161888-0001

LXE MX9 Series — 11.1V Li-ion Replacement Battery (161888-0001)

This 11.1V 3400mAh Li-ion battery replaces part number 161888-0001 and SB-MX9-L in the LXE MX9 rugged handheld terminal. It fits the MX9, MX9H, MX9A1B1B1F1A0US, and MX9AB4M0K1FCBDA0S0RTUSW600 variants. Same voltage rail and cell configuration as the factory pack.

• MX9 family fit: The MX9, MX9H, and extended model variants all share the same battery bay geometry, connector pinout, and BMS handshake protocol — one pack covers the range without modification.
• Bench tested on actual hardware: We ran this pack in an MX9 terminal through scan-and-transmit cycles under simulated warehouse load. The BMS held charge balance across all three cells and did not trigger low-voltage cutoff under combined radio and imager draw.
• First-shift preparation: After installing, place the MX9 in its cradle for a full charge cycle before using in pick-and-pack. Scan trigger inrush current peaks when the cell is near minimum charge, and starting the first shift with a fully charged pack prevents false BMS trips during high-frequency scanning bursts.

Cradle showing charging error on a new pack

The MX9 cradle reads battery state through pogo-pin contacts on the base of the terminal. Oxidation or debris on those contacts raises resistance enough that the dock misreads the pack's BMS signal and throws a charging fault. This is not a pack defect. Wipe the gold contacts on both the battery and the cradle with a dry lint-free cloth, reseat firmly, and the error clears in most cases within one reconnect cycle.

Scanner losing wireless connection during rapid scan bursts

The MX9 draws current from two sources simultaneously during a rapid scan burst — the imager or laser and the 802.11 radio transmitting each decode. On a degraded or deeply discharged cell, that combined inrush causes a momentary voltage sag below the radio module's minimum operating threshold, dropping the wireless link. The BMS on a healthy, fully charged pack sustains the combined load without sag. If drop-outs persist after a full charge, check cell voltage at rest — a pack sitting below 10.5V at rest is past recoverable capacity and needs replacement.