Sound of a Minelab Excalibur when the batteries go

[Waterdog]

I have had a Minelab Excalibur for many years and never heard it. Or at least I do not think I have. The sound of a battery on it's way out or a dead battery.
I had a younger guy come up to me the other day and ask me " How do you know when the battery is getting low or need to change it as there is no meter in a Excalibur"? "Every time I head out to the water I think I am going to have a dead battery" I never heard it and could not answer the guy.
I looked around on the net and could not find the answer to this question.

 

[John(Tx)]

n/t

 

[dewcon4414]

Mine starts give kind of a HIGH zip sound like you just went over a huge target.

dew

 

[ROBOCOP]

Get a multi meter at Harbor Freight. Sometimes you can get them for free if you have the right coupon.
Check your batteries, easy peasy.

ROBOCOP

 

[GeorgeinSC]

Once you have heard it squall at you it becomes obvious. The sound is hard to describe. It will repeat itself at a predictable interval. I usually charge my battery after every use but on rare occasion I might go detecting twice on the same charge.

 

[Neil]

Once you have heard it squall at you it becomes obvious. The sound is hard to describe. It will repeat itself at a predictable interval. I usually charge my battery after every use but on rare occasion I might go detecting twice on the same charge.

yup that's it. Its a squelch that comes around every 30seconds or so just before it goes into a constant unadjustable threshold. Its one annoying noise.