Received a DMS-BATT-001 replacement battery for a DMS panel and the battery voltage is not 3.6 VDC.
TAC I/A Series
The DMS-BATT-001 is a custom 3 cell rechargeable NICAD battery. The voltage of the replacement battery, as received from the factory, may be less than 3.6 VDC until the battery is recharged by the panel or device.
Install the replacement battery and allow the panel or device to recharge the battery. Once charged, the battery supplies the DMS-3500 series controller with battery backup of volatile program data for a minimum of 72 hours.