Arlo|Smart Home Security|Wireless HD Security Cameras

What's the best way to test CR123 batteries outside of original Arlo wireless cameras?

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ant
Mentor
Mentor

None of the battery testers I used seem to be accurate. They keep saying each battery is still good! Arlo cameras disagree!

 

Thank you for reading and hopefully answering soon. 🙂

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jguerdat
Guru Guru
Guru

"It depends." (TM)

 

A battery tester that simply shows a non-calibrated display of the battery condition may tell they're "good" but use of a voltmeter to actually measure what the batteries can supply would be a better choice. As I recall (it's been a while) non-rechargeable CR123 batteries should be ~3.2v when fresh. The Arlo cameras will stop working when the voltage reaches ~2.75v due to the load the cameras exert on them, lowering the actual in-circuit voltage even more. The batteries will work in other devices (flashlights, etc.) that don't load the batteries as much and may have a lower voltage threshold.

 

Use a voltmeter to test and get an accurate reading rather than a nondescript "Good"/"Bad" reading.