LR Titan on Battery pack - no power?

Hi Zooz,

I recently replaced an older Titan with a new LR model, and I have a Titan battery backup installed in this location.

Unfortunately, the battery pack does not power the new Titan when line power is removed… The battery has steady blue LED when powered, and it (very) slowly flashes blue indicating that it’s discharging when unplugged, but it then doesn’t pass any juice to the Titan (the Titan becomes completely unresponsive and has no LED activity).

All connections are triple-checked tight & correct. All other aspects of the Titan are working great when it’s line-powered – it then properly reports battery (charge), batteryStatus, and powerSource as expected (100, maintaining, mains respectively)

I confess I didn’t confirm if all of that was working fine before swapping out the Titans, but I know it’s all worked correctly in the past (with the old Titan) when I’ve pulled power on that circuit.

Is it possible that my battery pack is somehow already dead, or could it be something else unique to the (new) 700LR Titan?

Thanks for any thoughts!

Hi @hydro311

Thank you for bringing this to our attention.

We will try to replicate this issue on our end as well.

We do not believe that there is an issue with your battery pack as well. Most likely the issue is with the installation sequence between the new ZAC36LR and ZAC92.

We will keep you posted with our test results.

Best Regards

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If it’s helpful, I’m using Jeff Page’s driver on a Hubitat C8 Pro (everything updated on latest versions).

This Titan is paired LR.

Although I did the initial pairing with the battery connected, I also did an exclude / re-include as an additional troubleshooting step. In both the original inclusion and the re-inclusion, the battery was identified as hoped/expected.

So except for the fact that the battery does not actually pass any power when line power is removed, everything else is working great!

I got the battery in early June 2023 (order # 99608).

Thanks for your willingness to look into this - I appreciate it!

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For giggles, I pulled the power plug on that Titan today, and still nothing – no battery juice flows to power the Titan, so it goes offline.

But now, the battery’s LED just stays solid blue no matter what, and the Titan’s States now confirm battery issues (see pic below)…

The battery still passes line power through fine when plugged in, so I’ve just left it that way for now.

I’m guessing it’s time to try a new battery pack? It’s disheartening that the pack only lasted a year, but perhaps it was a dud?

@hydro311

By any chance do you have a digital multimeter and can check the battery voltage itself? On the battery backup, there is one screw itself and if you unscrew it, you can pull out the battery itself and check the voltage - DC. It should be 3.7-3.8V when fully charged.

Please let me know
Thanks!

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Good call - I never thought to try that!!

Got the tester out, opened up the case, and battery seems to be in great shape – it looks brand new and it reads 3.86v. Everything appears to be in good shape inside the case – zero leakage or anything like that.

So I popped battery back in, and the pack started doing a very slow blue LED blink (1 blue blink ~9-10 seconds).

Wired it back in the Titan again, and same results – it passes line power through fine, but when the power plug is pulled, the Titan goes dark and the pack’s LED starts doing that slow blue blink (1 every 9-10 sec).

Thanks again for your help & thoughts!

Edit to add…

Just checked device states in Hubitat, and it’s now back to this… Nothing changes when the plug is pulled since the Titan then becomes unpowered.

@hydro311

Hi Chris!

We will be happy to offer you a replacement for the ZAC92 battery backup and take this one back for further evaluation.

Could you please open a ticket here: New Ticket - Zooz Support Center

Please include this link to the forum, so our CS team will know that this replacement was already approved.

I am sorry for the trouble!

Best Regards
Bartek

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That sounds awesome - thank you so much!

I’m at work right now, but I’ll get the form completed this afternoon when I get back home, and I’ll be sure to reference this thread in the request.

I really appreciate this - thank you again!

Edit to add – replacement is now enroute :+1: I will quick-turn my current unit back to you folks ASAP once I get the replacement in and confirmed working. Thank you again for your help on this!

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I got the replacement battery swapped in, and it’s working great – when line power is removed, it transitions immediately to battery. The corresponding battery-related beeps and LEDs are all as they should be when the power on/off transitions happen.

I have the old battery packed up, and I’ll get it in the mail back to you folks tomorrow.

Thank you again for your help getting this resolved - it’s much appreciated!

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Great to hear! We look forward to testing the unit once we get it back to see what may be happening. Thanks again!

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