Yale Wireless Alarm Siren Box - D Cell batteries replacement

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The wireless Yale siren box takes 4x D cell batteries, the originals I got with it are powerone alkaline 1.5V Mono LR20, and have lasted 3.5 years (these are made by Varta).

I just purchased and installed 4x Varta Longlife Max Power, but the low battery warning pips still sound after setting/unsetting the alarm. These batteries test well in my battery tester, so must just not be right for the alarm siren box.

What batteries do people get for these that will last approx 3 years again?

Thanks
 
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not familiar with the Yale, but suspect you didnt fully discharge the unit before replacing the batteries.

Not uncommon to see in other alarm devices reporting the wrong battery status because the units werent fully discharged first.
 
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not familiar with the Yale, but suspect you didnt fully discharge the unit before replacing the batteries.

Not uncommon to see in other alarm devices reporting the wrong battery status because the units werent fully discharged first.

interesting. I did just swap each battery at a time, rather than pull all out then put new in.
How long a discharge is required? 10 seconds enough?
 
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no idea, with the systems i use i press the tamper spring several times and seems to do the job after batteries out, on some units you short the terminals out to discharge.

if there is a power light indicator you can see it go out
 
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Thanks again, I can confirm I did as you said, took 1 battery out and pressed tamper spring 3-4 times and the new batteries are working fine now, no battery low warning.
 
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