Lock bolt low battery percentage

Does anyone happen to know what percentage the low battery warning happens for the lock bolt?
I’m at 12% battery and no warning so far.

So, I believe it should indicate low battery when the battery percentage gets below 20%.

Note that it doesn’t have internet access, so it can’t send a notification, though people are requesting they figure out how to do this. Here is the wishlist for it:

Instead, I think I remember that it flashes differently on the lockpad to visually cue you into realizing it needs new batteries.

I usually just start checking the battery percentage daily once it gets low so I can use the batteries to nearly their last drop.

Thanks for the reply. So far the tones and flashes are the same. The battery icon is not illuminated.