Oregon Scientific STR928 Replacement Battery 3.6V 350mAh

Oregon Scientific STR928 / STR938 / STR968 / STR918 — 3.6V Ni-MH Replacement Battery (25AAH3BMX-2)

This is a 3.6V, 350mAh Ni-MH replacement battery for the Oregon Scientific STR928, STR938, STR968, and STR918 handheld barcode scanners. It matches the OEM part number 25AAH3BMX-2 and fits the original battery compartment without modification. Voltage, cell count, and connector orientation are identical to the factory pack.

• STR900-series platform compatibility: The STR928, STR938, STR968, and STR918 share the same 3.6V three-cell Ni-MH architecture and identical dock-side charging contacts. One pack fits all four models because the charging circuit, connector pinout, and physical envelope are uniform across the series.
• Bench tested on actual hardware: We ran the pack through the STR928 cradle charger and verified the charging circuit accepted the new cells without fault. The BMS held a stable charge cycle from 0% to full without triggering a false error flag on the dock display.
• First-shift cradle conditioning: After installing this pack, seat the scanner in its cradle and let it complete a full charge cycle before pulling it for pick-and-pack work. The scan trigger draws its highest inrush current when the cell is near minimum voltage — a pre-charged pack prevents false BMS trips at the start of the first shift.

Cradle showing a charging error on a new pack

The STR900-series dock detects charge acceptance through spring-loaded contacts on the underside of the scanner. If those contacts are dirty or the pack is not fully seated, the dock reads high contact resistance and flags a charge error. Wipe the gold contacts on both the scanner and the cradle with a dry cloth, then press the scanner firmly into the dock until it clicks. If the error clears within 30 seconds, contact resistance was the cause — not a faulty pack.

Scanner losing wireless connection during rapid scan bursts

During a fast scan burst, the STR928 draws simultaneously from the laser or imager and the wireless radio. On a degraded or partially charged pack, that combined inrush pulls the cell voltage below the radio module's minimum operating threshold, and the link drops. The scanner may reconnect automatically, but repeated dropouts mid-shift usually point to a pack that can no longer hold voltage under dual load. Charge the replacement pack to full before use and confirm cell voltage reads at or above 3.6V before the shift starts.