Symbol PDT8100 Replacement Battery DT-5023BAT 3.7V 3600mAh

Symbol PDT8100 Series — 3.7V Li-ion Replacement Battery (DT-5023BAT)

This 3.7V 3600mAh Li-ion battery replaces the original pack in the Symbol PDT8100, PDT8134, PDT8137, and PDT8140 handheld barcode scanners, along with 40+ additional PDT8100-series variants. It uses OEM part references DT-5023BAT, DT-5024LBAT, CA50601-1000, and 21-58236-01. The physical dimensions are 57.40 × 36.67 × 24.15mm — verify your current pack before ordering.

• PDT8100 platform compatibility: The PDT8100 series shares a common battery bay geometry and 3.7V single-cell architecture across its variants. Each model uses the same connector footprint and BMS handshake protocol, which is why one pack covers the full range — the voltage rail and communication lines are identical across the platform.
• Bench tested on actual hardware: We ran this pack on a PDT8134 unit and cycled through rapid scan-and-transmit sequences. The BMS held charge delivery steady through combined laser and radio inrush events without tripping the protection circuit.
• First-shift cradle protocol: After installing, place the scanner in its cradle for a full charge cycle before use in pick-and-pack operations. Scan trigger inrush current is highest when the cell is near minimum voltage, and starting from a fully charged cell prevents false BMS trips during the first shift.

Cradle showing a charging error on a new pack

The PDT8100 cradle communicates with the battery pack through pogo-pin contacts on the base of the scanner. If those contacts have oxidation or debris from the previous pack, the dock reads elevated contact resistance and flags a charging fault rather than the new pack itself. Wipe the three contacts on both the scanner base and the cradle dock with a dry cloth before reseating. If the error clears on the second seating, the contacts were the cause — not the battery.

Scanner drops wireless connection during rapid scan bursts

On the PDT8100, the laser module and the 802.11b radio draw simultaneously during a fast scan burst — scan trigger fires, then the unit immediately transmits the decoded data. A degraded or deeply discharged cell cannot supply both loads without a voltage sag that drops the radio below its minimum operating threshold, causing the wireless link to drop. This does not happen because of interference — it is a supply-side issue. Fully charge the new pack before the first shift and confirm the cell voltage reads above 3.6V before deploying.