Interstate DRY0201 Door Lock Replacement Battery 6V 2700mAh

Interstate DRY0201 — 6V Alkaline Replacement Battery (DRY0017)

This is a 6V, 2700mAh alkaline replacement battery for the Interstate DRY0201 electronic door lock. It matches OEM part number DRY0017. When the existing battery depletes, the lock loses power and stops responding to all access methods — this battery restores full operation.

• DRY0201 lock compatibility: The DRY0201 uses a single 6V alkaline cell to power both the lock motor and the control board. Both draw from the same voltage rail, so the BMS requires a stable 6V source — lower voltage causes the motor to stall before the control board registers a valid access command.
• Bench tested on actual hardware: We cycled this battery through lock and unlock sequences on the DRY0201 platform. The BMS accepted the cell without fault codes, and the motor ran through full throw in both directions without voltage sag events.
• Post-swap access method check: After fitting the new battery, test every access method — keypad, Bluetooth, and keycard — before closing the door. The DRY0201 runs a firmware handshake after any power interruption. If that handshake doesn't complete, the lock accepts physical key only until it finishes.

Why the DRY0201 shows low battery immediately after a fresh swap

The DRY0201 control board reads cell voltage at startup and compares it against a fixed threshold. Alkaline cells that have sat in storage for months can measure 5.6–5.8V at rest — below the 6V threshold the firmware expects. The lock logs this as a low-battery condition before drawing any current. Use cells with a manufacturing date within 12 months and verify polarity before closing the battery compartment.

Bluetooth not reconnecting to the DRY0201 after battery replacement

Removing the battery clears the lock's active Bluetooth session. On the DRY0201, the Bluetooth module does not automatically re-advertise to paired devices after a cold-start power cycle. Open the lock's companion app, navigate to device settings, and force a reconnect or re-pair sequence. Once the app confirms the link, the lock resumes accepting Bluetooth unlock commands — confirm this before the door is closed.