Honeywell Dolphin 7600 Replacement Battery 3.7V 3200mAh

Honeywell Dolphin 7600 Series — 3.7V Li-ion Replacement Battery (7600-BTEC)

This 3.7V, 3200mAh Li-ion battery replaces the OEM pack in the Honeywell Dolphin 7600 and Dolphin 7600 II handheld mobile computers. These devices are used in retail, warehousing, and logistics for barcode scanning and data collection. Capacity is sourced from the product specification — 3200mAh / 11.84Wh.

• Dolphin 7600 and 7600 II compatibility: Both models share the same battery bay geometry, connector pinout, and BMS communication protocol. OEM part numbers 7600-BTEC, 7600-BTXC, and 7600-BTXC-1 all cross to this pack — the difference between those OEM codes is packaging, not the cell or electronics inside.
• Bench tested on actual hardware: We ran this pack through the Dolphin 7600's BMS handshake sequence and confirmed the protection circuit responds correctly to charge termination, over-discharge cutoff, and short-circuit events. The cell voltage at rest matched spec within 0.05V.
• First-shift preparation for pick-and-pack: After installing, seat the scanner in its cradle for a full charge cycle before pulling it for active use. The scan trigger inrush current is highest when the cell sits near minimum charge, and a pre-charged pack prevents false BMS trips during the first scan burst of the shift.

Cradle showing a charging error on a new pack

Charging docks for the Dolphin 7600 read battery state through the contact pins on the pack's base. If those contacts have oxidation, residue from a previous worn pack, or are seated slightly off-axis, the dock throws a charging fault even when the cell itself is fine. The dock interprets a high contact resistance as an absent or failed pack. Wipe the gold contacts on the new battery with a dry lint-free cloth, reseat the scanner firmly until it clicks, and check that the charging LED responds within 10 seconds.

Scanner losing wireless connection during rapid scan bursts

The Dolphin 7600 draws current simultaneously from the scan engine and the wireless radio during a fast scan sequence. Combined inrush from both subsystems can cause momentary voltage sag if the cell is below roughly 3.5V. The BMS interprets the sag as an unsafe discharge event and briefly interrupts output, dropping the wireless session. Charge the pack to full before a high-frequency scanning shift and avoid back-to-back bursts when the battery indicator shows below 20%.