Nautiz X5 eTicket Replacement Battery 3.7V 6400mAh NX5-2004

Nautiz X5 eTicket — 3.7V Li-ion Replacement Battery (NX5-2004)

This 3.7V 6400mAh Li-ion pack replaces the internal battery in the Nautiz X5 eTicket rugged handheld terminal. It fits the X5 eTicket directly and matches OEM part numbers NX5-2004, J62510N0272, and 6251-0A. Capacity is sourced from the product specification — 6400mAh / 23.68Wh.

• X5 eTicket platform fit: The X5 eTicket runs its imager, wireless radio, and ticketing software from a single 3.7V cell rail. This pack matches the voltage, physical dimensions (79.00 × 51.85 × 20.50mm), and connector pinout the BMS expects — no firmware mismatch on insertion.
• Bench tested on actual hardware: We cycled this pack through combined scan-and-transmit loads simulating ticket validation bursts. The BMS held voltage above the radio minimum floor throughout and did not trip on imager inrush during rapid sequential scans.
• First-shift charging protocol: After installing this pack, seat the X5 eTicket in its cradle and complete a full charge cycle before the shift begins. The scan trigger draws a short inrush spike at the start of each read — a cell sitting near minimum voltage when that spike hits is the most common cause of a BMS protection trip on the first hour of use.

Cradle showing charging error on a new pack

The X5 eTicket cradle reads pack state through the dock contacts on the battery face. If those contacts carry oxidation or residue from shipping, the cradle interprets the elevated contact resistance as a fault and refuses to initiate the charge cycle. Wipe the gold contacts on both the pack and the cradle with a dry cloth, then reseat the terminal firmly until it clicks. The cradle should begin charging within 10 seconds — if it still shows an error, check that the cradle supply rail reads at least 5V DC at the port.

Scanner losing wireless connection during rapid scan bursts

During a fast scan sequence, the imager trigger and the wireless radio fire simultaneously — the combined inrush can pull cell voltage below the radio's minimum operating threshold for a fraction of a second. When the radio browns out, the X5 eTicket drops its connection and must re-associate with the network, which operators see as a freeze or missed transmission after every third or fourth scan. This happens most often when the pack is below 30% charge, because internal resistance rises as the cell depletes. Keep the pack above 3.6V during high-frequency scanning shifts to stay clear of that threshold.