About this replacement
Paradox Magellan MG6060 Series — 7.2V Ni-MH Replacement Battery (6-VH790670)
This is a 7.2V, 2000mAh Ni-MH backup battery for the Paradox Magellan MG6060, MG6030, MG6160, and MG6130 control panels. It sits inside the panel enclosure and keeps alarm monitoring and communication active during mains power outages. When the original cell degrades and can no longer hold adequate charge, this is the direct replacement cell at the same voltage and form factor.
- MG6060, MG6030, MG6160, MG6130 compatibility: All four panels run the same 7.2V backup rail with identical connector pinout and enclosure slot dimensions (146.60 x 28.60 x 15.00mm). The BMS on each panel charges the cell via the same float-charge circuit, so no wiring changes are needed when swapping between these models.
- Bench tested on actual hardware: We ran this cell through the Paradox panel float-charge cycle and confirmed the BMS accepted the charge without fault. The cell reached full float voltage within the expected window and held stable under simulated outage load.
- Post-install panel conditioning: Do not run a zone test immediately after fitting this cell. Allow 24–48 hours on float charge before triggering any diagnostic test — the panel monitors the cell voltage during this window, and testing too early will cause a false low-battery report even though the cell is charging normally.
Alarm panel losing programming during a power outage after battery replacement
If the panel drops its programming the first time mains power cuts after a battery swap, the new cell had not yet been accepted by the BMS. Ni-MH cells need a full 48-hour conditioning period on the panel's float-charge circuit before the BMS treats them as a qualified backup source. During that window, any mains interruption may leave the cell with insufficient capacity to sustain panel memory. Let the panel charge the new cell continuously for 48 hours before the next outage or test cut.
Panel continues showing low battery fault 24 hours after fitting a new cell
A persistent low-battery fault after the 24-hour mark usually points to a float-charge circuit issue rather than the cell itself. Check that the panel's AC transformer is delivering correct voltage — a weak transformer will under-charge the backup cell, and the panel will keep flagging low battery regardless of cell condition. Measure the transformer output at the panel terminals; it should sit within the range specified on the transformer label, typically 16.5V AC for most Paradox panels. If the transformer output is correct and the fault persists, check the cell connector seating and confirm the replacement cell voltage reads at least 7.2V with a multimeter before reinstalling.