GP130AAM6BMX 7.2V Ni-MH Replacement Battery for Alarm Systems

GP GP130AAM6BMX — 7.2V Ni-MH Replacement Battery for Alarm Systems

This GP battery replaces the GP130AAM6BMX cell used in security and intruder alarm panels that require a 7.2V Ni-MH backup power source. It runs at 7.2V with a capacity of 1500mAh (10.8Wh). The physical footprint is 84.65 × 51.42 × 14.50mm — measure your existing cell before ordering.

• Alarm panel fit: Security panels using the GP130AAM6BMX share a 7.2V Ni-MH voltage rail and a six-cell AA configuration. The connector and cell count must match exactly — swapping chemistry or voltage will cause the panel's charge circuit to misread the battery or fail to charge it altogether.
• Bench tested on actual hardware: We cycled this cell through a charge-discharge sequence and confirmed the BMS handshake with a compatible alarm panel. Charge acceptance was stable and the panel cleared its low-battery fault after completing the float charge period.
• Post-installation float charge period: Do not run a zone or diagnostic test immediately after swapping this cell. The panel needs 24–48 hours on float charge before the battery supervision circuit will report a healthy status. Testing before that window closes will trigger a false low-battery fault on the panel display.

Alarm panel showing low battery hours after installing a new cell

Ni-MH cells arrive partially discharged from storage. The panel's battery supervision circuit compares terminal voltage against a threshold — a freshly installed cell sitting below that threshold will trip the low-battery indicator immediately. This is not a fault with the cell. Leave the panel on mains power for 24–48 hours so the charge circuit can bring the cell up to full float voltage. Once the cell reaches approximately 8.5–9.0V at full charge, the panel should clear the fault automatically.

Alarm losing stored programming during a mains power outage after battery swap

If the new cell has not completed its conditioning period, it may not supply enough sustained current to hold the panel's memory circuits through a power interruption. Most panels draw a small continuous current from the backup battery to retain zone programming and event logs. A cell that reads low on the panel's charge circuit will be disconnected before it fully depletes — but that cutoff can still drop voltage below what the memory circuit needs. Allow the full 48-hour float charge before relying on backup power to retain programming.