SonicSilicon wrote:Where I live is certainly not as cold and our alarms are not wired, so it's not surprising we haven't had this issue.
My best guess is that there could be a very fine layer of corrosion on the contacts. Try cleaning them with a nylon scouring pad (e.g. Scotch Brite) and return the same battery to see if that stops the chirping.
Also, if you can, test the charge on the 9V cells.
tygrus wrote:Try using a different battery chemistry. Can you get a Lithium based 9v if it takes 9v. You described as a "hard-wired smoke alarm" and yet you are inserting a battery ??? If it's hard-wired then you would have alarm cable running to it which also supplied 12v and could consume 50mA. A purely battery powered device is going to have a reduced power consumption and very low standby current draw.
sluggo wrote:Sorry for the late post, but just wanted to mention that any corrosion on the terminals would lead to decreased current levels, not increased current levels. The batteries would be sourcing less current and would, in theory, last longer.
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