Had an interruption of power today and Qolsys panel was operating on battery for about 2 hours. Towards the end of this period I received a message from the monitoring service warning of low battery (was not home at the time). Several hours after power was restored, panel battery status now indicates battery status = charged, level is 100%, and voltage is 8.386v. Software level is Q1.6.3. Unit is about 15 months old, battery has had very little use thus far.
Is this voltage level 8.386v close enough to spec (8.4v?), or should I replace? What tests should I conduct to ensure battery is OK? thanks.