Cognex Dataman 8000 Replacement Battery 3.7V 2000mAh 124-1004R

Cognex Dataman 8000 Series — 3.7V Li-ion Replacement Battery (124-1004R)

This 3.7V, 2000mAh Li-ion battery replaces the original pack in the Cognex Dataman 8000, 8050, 8050E, and 8050X handheld barcode scanners. It matches OEM part numbers 124-1004R, 124-10000R, DMA-HHBATTERY-01, and TEMP-NP100A. Same voltage, same form factor, same connector — the scanner sees no difference from the original.

• Dataman 8000 series compatibility: The 8000, 8050, 8050E, and 8050X share the same battery bay geometry, 3.7V power rail, and BMS handshake protocol. One pack covers the full sub-family without modification.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a Dataman 8050. The BMS accepted charge from the OEM cradle without fault codes, and the scanner powered through scan bursts without triggering undervoltage cutoff.
• First-shift cradle charge: After installing a fresh pack, seat the scanner in its cradle for a full charge cycle before use. The scan trigger draws the highest inrush current when the cell is near minimum — a pre-charged cell prevents false BMS trips during the first pick-and-pack shift.

Cradle showing charging error on a new pack

The Dataman cradle reads pack state through spring-loaded contact pins on the battery base. If those contacts carry oxidation or debris from the old pack, the dock interprets high contact resistance as a fault and throws a charging error — even on a brand-new cell. Wipe the contacts on both the battery and the cradle dock with a dry cloth, reseat firmly, and the error clears in most cases. If the error persists past two reseats, check cradle pin tension — a bent pin maintains poor contact regardless of pack condition.

Scanner losing wireless connection during rapid scan bursts

On the Dataman 8050 series, the imager trigger and the wireless radio fire simultaneously during fast barcode capture — combined inrush can pull voltage low enough that the radio drops its connection momentarily. This shows up as missed scan confirmations or a flickering link indicator during high-volume passes. A cell near end-of-life cannot hold voltage under that combined load and drops off faster. If connections drop during bursts but recover when scanning slows, the cell has degraded — swap the pack and confirm the radio stays linked through a full scan sequence.