Eotech 512 battery question

[ForTehNguyen]

If his eotech is new then he should have the newer terminals in the battery box. My older eotech 512 still had those terminals that fall out when you take the batteries out of the box. I bought the replacement part that would fix it for $7.

[Yojimbo]

To me it sounds like the OP saw the reticle flashing, which is the low battery warning, before the battery died. This is why it works just fine with new batteries...

[SMETNA]

The batteries they include are sucktacular, IMO.

Lithiums are good for several reasons: they can sit in storage without losing strength for 6+ years, they are resistant to -20f up to +140f, and they're lite weight.

No issues with my 512. I wish the aimpoint pro took AA batts, I'd get one. Trying to standardize on AA.

[Eric]

...Energizer Industrials, which I do believe are lithium.

Negative. They are standard alkaline. Ditch them and replace them with Energizer Lithium cells and life will be much better.

[obucina]

Negative. They are standard alkaline. Ditch them and replace them with Energizer Lithium cells and life will be much better.

i ended up selling my EoTech, the next optic will be Swedish

[SMETNA]

Sometimes I don't get it. Is 500 hrs of batt life really a big deal?

Who thinks they're going to hear a bump in the night and need a loaded carbine with optic ON immediately? As in right the **** this second.

I think racking the charging handle and pressing one button is more than reasonable.

And if the SHTF, 500 hrs is about a month. If you have a small pile of rechargeables and a solar charger, you're gtg I think. Who's doing a 2-month combat patrol with no resupply? Not me.

[Tomac]

I'm a big fan of the Eotech's A65 reticle and for my needs a battery life of appx 1K hrs is sufficient.
However, the Eotech's control buttons are slower/more difficult to use under stress and Eotechs have more reported problems than Aimpoints (loose/compressed battery contacts, delaminated HUDs, sudden loss of zero, battery drain when turned off, electronics requiring a power-off reset, etc) whether it's immediately or years down the road.
Give me a more robust/reliable Eotech w/an Aimpoint-style rotary switch and I'd be all over it regardless of battery life.
With that being said, I used nothing but lithiums in my AA Eotechs and had no battery-related problems.
Tomac

[TROPICS]

To me it sounds like the OP saw the reticle flashing, which is the low battery warning, before the battery died. This is why it works just fine with new batteries...

Im gonna agree with this....i have used it pretty heavy the last couple of weeks ...it has worked fine....Just perfect timing with the batteries dieing....Also regarding lithium batteries..Can this use 3.6volt lithium batteries or do they still have to be 1.5's?

[Tomac]

Im gonna agree with this....i have used it pretty heavy the last couple of weeks ...it has worked fine....Just perfect timing with the batteries dieing....Also regarding lithium batteries..Can this use 3.6volt lithium batteries or do they still have to be 1.5's?

They have to be 1.5's, Eotechs don't have the internal voltage regulator that the Aimpoint M4 & M4S have that allows them to use any AA-sized battery.
Tomac