ITRON MP2500 Barcode Scanner Replacement Battery 3.6V 1700mAh

ITRON MP2500 / FS3 — 3.6V Ni-MH Replacement Battery (F-2049-0001)

This is a 3.6V, 1700mAh Ni-MH replacement battery for the ITRON MP2500 and FS3 handheld barcode scanners. It replaces OEM part numbers including F-2049-0001, P-2049-0001, and H-2040-0021, among others. These scanners are used in retail point-of-sale and warehouse inventory operations where consistent scanning is critical across a full shift.

• MP2500 and FS3 compatibility: Both models run on the same 3.6V single-cell Ni-MH platform with identical connector pinout and BMS handshake requirements. One pack covers both devices without any modification.
• Bench tested on actual hardware: We cycled this pack through repeated scan-trigger inrush events and monitored BMS response at low state-of-charge. The protection circuit held stable cutoff thresholds and recovered correctly after each discharge cycle.
• First-shift preparation on the MP2500: After installing this pack, place the scanner in its charging cradle for a full charge cycle before use on the floor. Scan trigger inrush current is highest when the cell is near minimum voltage, and a fully charged pack prevents false BMS trips during the first pick-and-pack shift.

Cradle showing a charging error on a new Ni-MH pack

ITRON charging cradles use contact-resistance sensing to confirm a valid pack is seated before starting a charge cycle. Oxidation or debris on the gold-plated contacts raises that resistance above the cradle's threshold, triggering a fault flag. This is not a faulty battery — it is a contact issue. Wipe both the pack contacts and the cradle contacts with a dry lint-free cloth, reseat the scanner firmly, and the charging indicator should clear within 10 seconds.

Scanner dropping wireless connection during rapid scan bursts

During a fast scan burst, the MP2500 draws current simultaneously from the laser or imager, the decode processor, and the wireless radio. That combined inrush can cause a momentary voltage sag on a partially discharged Ni-MH cell. When the cell voltage dips below approximately 3.0V, the radio module loses its supply margin and disconnects before the BMS trips the pack entirely. Keeping the pack above 50% charge during high-frequency scanning prevents this sag and holds the radio connection stable.