MYQ Smart Garage Video Keypad 3.7V 5200mAh Compatible Battery

MYQ Smart Garage Video Keypad (VKP1-MYQ) — 3.7V Li-ion Replacement Battery (18650MH1-1S2P)

This 3.7V 5200mAh Li-ion cell replaces the internal battery in the MYQ Smart Garage Video Keypad. It fits models listed as SMART GARAGE VIDEO KEYPAD, Video Keypad, and VKP1-MYQ. Capacity is 19.24Wh — matched to the original OEM specification.

• VKP1-MYQ platform fit: All three listed model variants share the same 3.7V single-cell architecture and 18650MH1-1S2P cell configuration. The BMS in each communicates charge state at the same voltage thresholds, so one cell covers the full lineup without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the VKP1-MYQ platform. The BMS accepted the cell without fault codes, held float charge within spec, and did not trip the low-battery alarm during stabilised operation.
• Post-installation float charge window: Do not run a zone or diagnostic test immediately after fitting this cell. The panel BMS requires 24 to 48 hours at float charge before it reports accurate battery status — triggering a test earlier will cause a false low-battery alert even with a fully functional new cell.

Why the VKP1-MYQ reports low battery within hours of a new cell install

The MYQ keypad panel does not read raw cell voltage directly after installation — it samples the BMS charge state report, which only stabilises after the cell has been on float charge for a full conditioning window. A fresh cell installed with partial charge will sit below the BMS reporting threshold and trigger a low-battery flag. This is a firmware behaviour, not a cell defect. Leave the device connected to mains power and allow 24 to 48 hours before checking battery status in the MYQ app.

Keypad loses stored access codes after a power outage with the new battery fitted

If the replacement cell has not completed its initial conditioning cycle, the panel backup supply drops below the memory-retention threshold during a mains outage — typically under 3.5V load. The panel interprets this as a total power loss and wipes volatile memory, including stored PIN codes and user profiles. To avoid this, allow the new cell to complete at least 48 hours on float charge before the unit experiences any mains interruption. After a wipe event, re-enter access codes via the MYQ app and allow another full conditioning cycle before testing backup behaviour again.