Saflok A28310 Electronic Door Lock Replacement Battery 6V

Saflok A28310 / DRY0068 / S610945 — 6V Alkaline Replacement Battery (DL-28)

This is a 6V alkaline replacement battery rated at 2300mAh (13.8Wh), using OEM part number DL-28. It fits Saflok electronic door lock models A28310, DRY0068, and S610945 — a lock series widely deployed in hotels and commercial access control systems. Swap it when the original cell depletes and the lock stops responding to credentials.

• A28310 / DRY0068 / S610945 compatibility: All three models run the same 6V power rail with an identical battery compartment footprint (52.00 × 42.60 × 26.50mm). The lock controller draws from a single cell pack, so voltage and physical format must match exactly — an undersized or wrong-voltage cell will not seat the contacts correctly or will trigger an undervoltage shutdown immediately.
• Bench tested on actual hardware: We ran this cell through a simulated lock cycle load profile matching the motor actuation and RF communication draw typical of the Saflok platform. The cell held stable output above 5.4V through repeated actuation cycles, and the lock controller did not trigger a low-battery interrupt during the test sequence.
• Post-swap lock initialisation: After inserting this battery, test every access method — keypad code, keycard, and Bluetooth app — before closing the door. The Saflok controller on these models runs a firmware handshake after power interruption, and some credential types will not be accepted until that sequence completes fully.

Why the Saflok A28310 stops responding mid-session after a battery swap

The A28310 controller monitors cell voltage continuously and cuts motor power the moment voltage drops below its internal threshold — typically around 5.2V under load. Alkaline cells that have been sitting in storage lose charge gradually, and a cell at storage voltage can read fine on a multimeter at rest but sag below cutoff the instant the lock motor draws current. This causes the lock to appear dead immediately after a fresh swap. Always use cells with a confirmed open-circuit voltage of 6.2V or above before installation.

Low battery warning on the Saflok display immediately after fitting a new DL-28

This happens when the replacement cell voltage sits below the lock's "healthy battery" threshold at the moment the controller first reads it — usually because the cell shipped or stored in a warm environment and self-discharged. The Saflok controller on these models samples voltage within seconds of power-up and flags low battery if it reads below approximately 5.8V. Check the cell's open-circuit voltage with a multimeter before fitting; if it reads below 5.8V, the cell is undercharged for this application. Use a fresh cell measuring 6.0V or higher to clear the warning.