LXE MX2 Replacement Battery 3.6V 1800mAh Ni-MH 00-864-00

LXE MX2 — 3.6V Ni-MH Replacement Battery (00-864-00)

This is a 3.6V, 1800mAh Ni-MH replacement battery for the LXE MX2 handheld barcode scanner. It fits the MX2 mobile data terminal used in retail stockrooms, distribution centres, and warehouse pick-and-pack operations. Cross-references include OEM part numbers 990004-0002, H150AA3PF, PS21H2-A, PS21H2-D, and PS21H3-D.

• MX2 platform fit: The MX2 runs on a single-cell 3.6V Ni-MH pack with a specific contact layout and BMS handshake that gates scanner boot. This replacement matches that contact geometry and the cell chemistry the MX2 firmware expects — swap it in and the terminal boots without reconfiguration.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on an MX2 terminal, monitoring BMS response during scan trigger bursts and wireless polling events. The pack held voltage above the scanner's minimum operating threshold throughout the draw cycle without triggering a false low-battery cutoff.
• First-shift preparation for MX2 scanners: After installing this pack, seat the scanner in its cradle and complete a full charge cycle before pulling it for use. The scan trigger inrush current peaks when the cell is near minimum voltage — a fully charged cell prevents false BMS trips at the start of the first shift.

Cradle showing charging error on a new pack

An MX2 cradle charging error on a fresh pack is almost always a contact resistance issue, not a faulty battery. The dock uses spring-loaded gold contacts that oxidise or collect debris over time. High contact resistance causes the cradle's charge controller to see an incomplete circuit and throw an error before charging begins. Wipe the battery contact pads and the cradle contacts with a dry cloth, reseat the scanner firmly, and confirm the charge indicator activates — cradle voltage at the contacts should read 4.8V or above once the circuit is clean.

Scanner losing wireless connection during rapid scan bursts

The MX2 drives both its wireless radio and its scan engine from the same cell simultaneously. During a rapid scan burst, the combined inrush from the laser or imager plus the radio polling cycle can pull the cell voltage low enough for the radio module to drop off. This is most common when the battery is below 50% charge and ambient temperature is below 15°C, as Ni-MH internal resistance rises sharply in the cold. Charge the pack to full before a high-volume scanning shift and, where possible, keep the terminal above 15°C during use.