Kiesub KIE101-6AP-1 9V Alkaline Replacement Battery 2700mAh

Kiesub KIE101-6AP-1 — 9V Alkaline Replacement Battery

This is a 9V alkaline replacement battery rated at 2700mAh (24.3Wh) for the Kiesub KIE101-6AP-1 electronic smart lock. It delivers the steady voltage rail this lock's motor driver and microcontroller require. Fits the lock's internal battery compartment at 103.05 x 58.10 x 15.76mm.

• KIE101-6AP-1 platform fit: The KIE101-6AP-1 uses a single 9V cell to power both the motor drive circuit and the access control logic board from one supply rail. A cell that sags under load causes the motor to stall and the keypad to report errors simultaneously — this battery holds voltage through the motor draw spike.
• Bench tested on actual hardware: We cycled this battery through repeated lock and unlock sequences on the bench. The BMS in the lock registered a full-charge state and the motor drew cleanly without triggering the low-voltage cutoff.
• Post-swap access method check: After fitting this battery, test the keypad, Bluetooth app, and any keycard before closing the door. Some firmware versions on the KIE101-6AP-1 run a handshake sequence after power interruption — all access methods must confirm ready before the door is shut.

Why the KIE101-6AP-1 keypad freezes mid-entry after a battery change

The KIE101-6AP-1 runs its keypad controller and motor driver off the same 9V cell. If the replacement battery has been sitting in storage and its open-circuit voltage has dropped below roughly 8.4V, the lock's microcontroller boots but the motor draw pulls the supply low enough to reset the logic mid-cycle. The keypad lights up and then freezes or clears the entered code. Use a fresh cell — storage-depleted alkaline batteries at 8.0–8.3V are too marginal for this lock's combined current draw.

Low battery warning shows immediately after fitting a new battery

If the lock beeps or flashes a low-battery warning seconds after you install a fresh cell, check polarity first — reversed installation reads as no voltage on the lock's sense pin and triggers the warning instantly. If polarity is correct, the lock's detection threshold may be tripped by a brief voltage sag during initial motor engagement; remove the battery, wait 10 seconds, and reinsert it so the microcontroller reinitialises its voltage reference from a stable standby state. Confirm the cell reads at least 9.0V on a multimeter before reinserting.