About this replacement
Vivint CP01 Control Panel — 7.4V Li-Polymer Replacement Battery (10-000007-001)
This 7.4V, 5500mAh lithium-polymer battery replaces the internal backup cell in the Vivint CP01 Control Panel and Sky Master Control Panel. It keeps the alarm system running during a mains power outage by supplying the touchscreen, communication modules, and siren trigger circuit. Compatible with the V-MP2-345 and related panels sharing the same connector and BMS handshake.
- CP01 and Sky Master compatibility: These panels share a common battery bay, connector pinout, and BMS voltage thresholds. The same 7.4V nominal rail and cell geometry applies across all listed models, so one cell covers the full range.
- Bench tested on actual hardware: We ran this cell through charge acceptance and BMS handshake on the CP01 platform. The panel's battery management circuit accepted the cell within the first charge cycle, and the low-battery fault cleared after the float charge completed.
- Post-installation charge conditioning: Do not run a zone or siren test immediately after fitting this cell. Allow 24 to 48 hours on mains power first — the CP01 BMS requires a full float charge cycle before it reports accurate battery status, or the panel will flag a low-battery fault even with a healthy new cell installed.
Why the CP01 reports low battery hours after a fresh cell install
The CP01 does not simply read cell voltage — it uses a charge-cycle counter and BMS state register to determine battery health. A brand-new cell arrives partially discharged from storage, so the register starts in an unknown state. Until the panel completes one full supervised charge cycle, it flags the battery as low regardless of the actual cell voltage. This is expected behaviour, not a fault with the replacement cell.
Alarm loses all programming during a power outage after battery replacement
If the panel drops its zone programming during an outage, the backup cell is not yet holding sufficient charge to sustain the memory retention circuit. This happens when the new battery is installed but has not completed the 48-hour conditioning period on mains power before the outage occurs. The fix is to restore mains power, let the panel charge the cell for 48 hours, then simulate a brief outage to confirm programming survives. Cell voltage at that point should read at or above 8.0V under no-load conditions.