HandHeld Dolphin 6000 Replacement Battery 3.7V 1450mAh Li-ion

HandHeld Dolphin 6000 Series — 3.7V Li-ion Replacement Battery (PSSO122621558)

This 3.7V, 1450mAh Li-ion pack replaces the original battery in the HandHeld Dolphin 6000, 6000LU1 barcode scanners. These units are common in retail stockrooms, warehouse pick lines, and logistics operations where scan-heavy shifts put constant drain on a cell. Voltage and connector match the OEM spec exactly.

• Dolphin 6000 and 6000LU1 compatibility: Both variants run on the same 3.7V single-cell architecture with identical battery bay dimensions and the same BMS handshake protocol. One pack covers both units without modification.
• Bench tested on actual hardware: We cycled this pack through repeated scan-trigger bursts combined with active wireless polling. The BMS held steady through inrush spikes and did not trip false low-voltage cutoffs during burst sequences.
• First-shift prep for pick-and-pack use: After installing, seat the scanner in its cradle and run a full charge cycle before the first shift. The scan trigger draws peak inrush current when the cell is near minimum charge — a fully topped cell prevents false BMS trips during the first hours of heavy scanning.

Cradle charging error on a freshly installed pack

The Dolphin 6000 cradle reads battery state through the dock contacts on the base of the scanner. If those contacts carry oxidation or debris from the old pack, the dock may report a charging fault even though the new cell is fine. The cradle sends a handshake signal before committing charge current — a poor contact breaks that handshake. Wipe the battery contacts and the dock pins with a dry cloth, reseat the scanner firmly, and confirm the charge LED transitions from amber to steady green.

Scanner dropping wireless link during rapid scan bursts

Back-to-back scan triggers and active Wi-Fi polling pull current simultaneously, creating a combined inrush spike that can drag cell voltage below the BMS hold threshold momentarily. When voltage dips, the radio is the first subsystem the BMS sheds to protect the CPU and imager. This shows as a dropped network session rather than a full power-off. If this happens consistently, top the pack to 4.2V via a full cradle cycle before the shift — a fully charged cell handles the combined load without triggering the sag threshold.