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eotech battery drain?

5785 Views 20 Replies 0 Participants Last post by  frogger42
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so lately i haven't been shooting black betty...i moved to a "big city" to go back to school, and just haven't had the time to take her out.

i was feeling a little nostalgic today, so i took the ar out to check function, lube, and such...went to turn on the eo, look through it, and nothing.

i know it's been off. at the very least, i may have put it away with the thing on, but they're supposed to shut off in 8 hours! so...is it possible that the thing drained the batteries in two months, just by sitting in the gun case? i know batteries weaken over time, but this is ridiculous!

needless to say, i took the eo off, and did not put new batteries in. if shtf, i'll rock the buis until i have time to mount the eo and put batteries in it...

anyone else have this issue?
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what batteries does it use?
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I've never had a problem with mine.
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My eotech 511 (n batts) would eat the batteries up. I've never had a problem with my 552 (AA batts). Its had the same batteries for 2 years.
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the 511...n batteries. but i really didn't have it on for more than an hour since i put the new batteries in. unless there is some way that the foam in the case keeps turning the thing on?






anyone wanna buy an eotech? :razz:
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everyone I have talked to with an eotech that uses ntypes
say they burn through them like crazy!!!!!!
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yeah...the problem is that i wasn't using it!
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No trouble with mine....N baterry type
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Original batteries?
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I had a quick drain with the first set of AA, but not the second. Kind of weird..
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Original batteries?
second set to go in...maybe 2.5, 3 hours of use on 'em. very strange...
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haven't had a problem with either of my "N" battery EOtechs...
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My Holosight uses the N batteries and eats them in 8 hrs or less The Radio shack n's are gone in 6. Thats why I took it off my shotgun, nothing worse than not getting a shot at a deer because your sight is dead.
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second set to go in...maybe 2.5, 3 hours of use on 'em. very strange...
Call EOTech.. that is uncharacteristic behavior. I haven't had any issues with my 552, but I've been slowly switching all of my batteries to either CR123's or Lithium Ion AA's.
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My 511 batteries died while in storage, too, so I got suspicious and hooked up a digital multimeter.

My EoTech 511 draws about .06 milliamps while supposedly turned "off". That is why it's killing batteries.

If you want your EoTech batteries to last, remove them when you're not using it.
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You should remove batteries from ALL devices that are being stored for long periods. If they're alkaline, they could also leak and foul the terminals.
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you should remove batteries from all devices that are being stored for long periods. If they're alkaline, they could also leak and foul the terminals.
+1,000,000
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You should remove batteries from ALL devices that are being stored for long periods. If they're alkaline, they could also leak and foul the terminals.
that is why firearm devices run on alkaline cells are on my no-go list. An aimpoint will stay in the ON position for 5 years straight (even more depending on model). to me, this makes eotechs completely obsolete.

i have had three different N batt EO's that all ate batteries while in storage. I said "nuts to that" several years back, and sold all my EO's. In fact, my dads 511 came out of the safe dead just a few days ago.

unacceptable for an item that sits atop something that may be called into action at a moments notice.
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You can always buy lithium batteries...I throught some in my Eo.
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You can always buy lithium batteries...I throught some in my Eo.
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not N size lithiums..dont exist.

and even lithiums dont negate the fact that the EO draws a significant amount of current even while "off".
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