2500 mAh Nickel-Metal Hydride rechargeable battery for use with the PSC Falcon 320, 325, 330, 335, 340 and 345 terminals. Data Net recommends replacing rechargeable batteries every two years. Manufacturer's original part number was 5-2389. Replaces P/N 5-2043 and 00-864-00. This product is not manufactured by PSC / Datalogic.