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Door Sensor High Battery Usage...

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New Neighbor

Door Sensor High Battery Usage...

I have a Ring Security System (installed last March) and have experienced HIGH battery (CR123A) usage on some Contact Sensors.  I've replaced the batteries in a couple of my door sensors after only 3 months or so (as opposed to the three YEARS the lithium batteries should last). I see comments about the batteries in the doorbells running down quickly, but can't understand why these contact switches are consuming batteries so quickly.  They are draining the battery to nothing (.3 volts on the multimeter).  They have a clear run to the base unit (50 feet). 

 Has anyone seen this type of behavior elsewhere?  Any suggestions will be appreciated.

14 REPLIES 14
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New Neighbor III

Re: Door Sensor High Battery Usage...

How often are they triggered?
I assume power usage correlates to the sensor being tripped.
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New Neighbor

Re: Door Sensor High Battery Usage...

Actually, door activity is fairly minimal (maybe 3 or 4 cycles a day).  Others in system see more traffic, yet don't run down battery so quickly.

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New Neighbor III

Re: Door Sensor High Battery Usage...

Only other variable I could think of is distance from base station or range extender. Its possible it uses more battery to communicate if farther away from these. This is just speculation since I dont know technically how Zwave functions.
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Community Manager

Re: Door Sensor High Battery Usage...

Thank you for all the great help you have offered this and other fellow neighbors @CrazyCat. Could you please reach out to the Community Team at community@ring.com? We would love to ask you some questions and get your feedback directly as a valued member of the Community.

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New Neighbor III

Re: Door Sensor High Battery Usage...

@Riley More than happy to talk with you. I sent you an email. Thx

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New Neighbor II

Re: Door Sensor High Battery Usage...

I have a brand new Ring Alarm system, installed just 12 days ago. Today one of my contact sensors started sending low battery warnings every few minutes. When I check in the app, the device page shows an empty red battery icon and warns me of a very low battery.  I'm pretty sure when first installed the battery icon was full, I would have noticed in the app otherwise as I did study each sensor setup page in detail during installation.  

 

The particular contact sensor was purchased in a 6-pack of contact sensors - the other 5 sensors from the same pack all still show full battery status.  The door where this contact is installed has never been opened again after the initial installation and testing of the sensor 12 days ago, so it's not in a high usage area. It is also the closest sensor to the base station, perhaps only 8ft away.  

 

I deactivated the sensor from my system and removed the battery so it wouldn't keep constantly sending the error message.  If I measure the no-load voltage of the battery with a multimeter, it shows about 2.75V.  The date code on the battery itself is "01-2029"

 

I'm wondering if I got a defective contact sensor that is either draining the battery excessively, or perhaps just mis-reporting the actual voltage and incorrectly thinks the battery is low.  Other than just installing a new battery (unfortunately I don't have a new one handy), is there something else that can be done to check the sensor?  or is this perhaps a known defect with some sensors?

 

 

 

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Community Manager

Re: Door Sensor High Battery Usage...

Hi @abc, thank you for reporting this! It does sound like you either have a bad battery, or possibly something is amiss with the sensor itself. To test this, you could grab another battery (any of the batteries from your other sensors or a new one from the store) and put this in this sensor. You will have to add the sensor in question back to your system in the meantime to do this testing and see if it drains the battery quickly. If you notice it quickly draining your battery again, please reach out to our support team here to report this. If it seems to remain stable, then you're good to go and it was just a bad battery! 

 

Additionally, before you re-add the sensor in question back to your system, feel free to do a reset of the sensor to give it a fresh do-over as this might help. You can learn more about how to do a factory reset in our Ring Help Center Article here



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New Neighbor II

Re: Door Sensor High Battery Usage...

thanks @Chelsea_Ring for the suggestion.  Ok so I found another battery to try with this sensor. I did a factory reset of the sensor, then reinstalled the sensor to my system and with the other battery in it seems to be working now, after a couple days the battery icon in the app is still full green. I will see how it goes, checking the battery status over the next while.

 

however one strange thing I just noticed this evening. While sitting here at my desktop computer, I can see the contact sensor which had the battery problem. The door on which it is mounted is fully closed, and the app reports the door is closed.

 

But just now I saw the blue LED on the contact sensor flash quickly a number of times (maybe around 6-10 times in rapid succession).   I thought that strange, as the door is still closed solidly shut. Then a few minutes later, it happened again - the blue LED flashed rapidly a number of times then stopped. No door chime, no change in status in the app - nothing to indicate the door was opened or sensor status changed.   I've not noticed this blinking before (maybe just obvious now since it's night time and I happen to be sitting near the sensor). I wonder if the contact sensor is acting up and causing unexpected drain on the battery?  

 

is there some normal reason to see the blue LED on a contact sensor blink rapidly when the sensor is closed and not moving??  What does that blinking mean?

 

As I mentioned, the door is solidly closed and app doesn't report the contact has ever opened since I re-installed it (and yes, I tested that it works correctly when I re-installed it, and the magnet is mounted well within the specified mounting distance).

 

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Community Manager

Re: Door Sensor High Battery Usage...

@abc That's great to hear that it's working again as it should! For the contact sensor's LED flashing, this will happen occasionally when the device is "checking in." Now, if the device is having to "check in" multiple times, this could be due to the signal where it's at being weak, or other devices are "checking in" as well, making it try again. 

 

To be on the safe side, you can reach out to our support team to verify this information, the sensor's signal, and make sure that the contact sensor isn't having any abnormal behavior, missing check-in's, and overall seems to be working as expected! Otherwise, I would just observe it, and as long as there is still no excessive battery drain, it should be all good to go. Smiley Happy 



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