9 volt LiIon

ironhorse

Enlightened
Joined
Sep 8, 2008
Messages
597
Location
Pennsylvania
I just got some 9v LiIon batteries and a charger. Does anyone have a ballpark figure for how long they will power a smoke detector before they need recharged?
 

Dave_H

Flashlight Enthusiast
Joined
Nov 3, 2009
Messages
1,401
Location
Ottawa Ont. Canada
Erring on the side of safety, I would only use fresh alkaline 9v in smoke alarms, skipping NiCd and NiMH as well. You're not going to save any money on rechargeables anyway, likely will take years to break even (but that's secondary).

Dave
 

Dave_H

Flashlight Enthusiast
Joined
Nov 3, 2009
Messages
1,401
Location
Ottawa Ont. Canada
Using Lithium primary 9v Energizer L522 is probably safe but have never bought one and
not priced any recently, they must be expensive.

Dave
 

fivemega

Flashlight Enthusiast
Joined
Jan 28, 2003
Messages
5,550
Location
California
Using Lithium primary 9v Energizer L522 is probably safe
Dave
I am using smoke detector with Lithium primary 9v and happy with.
Smoke detectors use too little current and will work for long time. So there in no point for saving on rechargeable cells.
 
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