Energizer Ultimate Lithium 9 VDC

[ran]

I replaced all smoke batteries back in Jan 2018. I have low battery beeps now. Blew out smokes and replaced with standard batteries. Lithium's were 9.86 going in, low batt at 9.35. fun times.
_________
2007 SE V6 Titanium

 

[TK-422]

I replaced all smoke batteries back in Jan 2018. I have low battery beeps now. Blew out smokes and replaced with standard batteries. Lithium's were 9.86 going in, low batt at 9.35. fun times.
_________
2007 SE V6 Titanium

That's almost 5 years. I had First Alert alarms with Z wave that 10 year batteries all died within 8 months. I pulled them all and bought Nest smoke and carbon detectors.

They always seem to go off around 3am and are at the top of cathedral ceilings so they are a PITA to get to. The one thing you could not disable to FA alarms remotely for a dead battery. They considered 75% dead. I didn't want them going off when my wife was home alone because there is no way she could get on a ladder that high up.

The nest are battery plus 110V so I have to go up to each one and rewire for the plugs. Fun Times.

 

[ran]

Since 9.35 vdc , I replaced all my Multi-Meter batteries with them. Now I am trying to remember when I replaced the smokes, bought this house in 2007.