Need help troubleshooting my 210e.

[davidwolfe]

I've got this storage problem with my guitar. When the battery dies, and it's plugged in, it makes an obnoxious and very loud buzzing sound. I'm not sure if this is a common problem or not, but I was hoping you guys could help me pinpoint the problem.

Also just for clarification, this is the 9v powered ES-T.

[michaelw]

i would suggest removing the battery if the guitar is not going to be played for a while -
the ES-T preamp has a LED battery indicator, which lights up when the cable is plugged in,
but unlike the LED on the older fishman barndoor preamp, which was a low battery indicator
if it stayed illuminated when the guitar was plugged in, the ES-T LED shows there is power,
but it doesn't not indicate how long the battery will be good for (on the ES, it's about 40 hr)

a battery tester that shows the capacity of the battery, in addition to voltage would be a good idea, imho
http://www.lightinthebox.com/bt168-universal-battery-volt-tester-aa-aaa-c-d-9v-button-cell_p1299095.html?currency=USD&litb_from=paid_adwords_shopping&gclid=CLiNuOz6n78CFXMR7AodFzMACA

hope this helps
WELCOME ! ! !

[MikeB]

Do you mean that when you play it with a dead battery it makes the bad sound, or just plugged in, not playing it?

[davidwolfe]

Do you mean that when you play it with a dead battery it makes the bad sound, or just plugged in, not playing it?

Plugged in and playing with a nearly dead battery at first. Then after it gets really dead, it just puts out a constant buzzing sound.