As an aside, use quality lithium batteries. Cheap 123's you find for really low prices in bulk sometimes do not have PTC protection and are much more prone to venting than batteries with PTC.
Yup-there are still too many folks trying to save a penny by trying to get the absolute lowest price possible for batteries.
I tell folks the days of tossing cheap flashlights that are ruined by leaking batteries are looooong gone-ain't nuttin' disposable 'bout all these new pricey optics and flashlights-don't know that I've ever taken a battery maker up on his warranty, but if they leak in my new pricey high-tech toys they will
definitely be hearing from me!
In the past, iff'n leakers destroyed cheap flashlights,
These days, iff'n some of these penny pinchers open up their EOTech to find their slightly cheaper batteries crapped inside their optic, :banghead:
My 557 has Energizer Ultimate Lithiums-last ones I bought had a use by date of 2024! That's the longest shelf life I've seen on a battery.
My latest alkalines have a 7 year use by date-I just replaced a relative's garage door opener and smoke detector with Energizer 9v Lithiums, which have a 10 year use by date (like CR123s).
Wonder what's different with the Ultimate Lithiums vs 'regular' Lithiums?
The Ultimates seem to have 'bout a 4 year longer life rating-the Advanced Lithium Energizers I think have a 10 year use by date, like the CR123 and 9v Lithium.
And a slight heads up for anyone needing to restock their battery box-WalMart has a 20 pack of AA Alkaline Energizers ($9.97) with a small, black $ off booklet stuck in the center of the blister pack (you may have to dig through 'em to find ones with the $ off booklet).
The flyer inside is good 'til 6/2011, and has $3 off coupon on Ultimate Lithiums, $2 off on Advanced Lithiums, $1 off next Alkaline multi-pack purchase.
There are other coupons for stuff like headlamps etc, but the only ones I used were the Alkaline, Lithium, and Ultimate Lithium coupons.
WalMart's 'bout as cheap as anybody I can find on Ultimate Lithiums etc-with the coupon, doubly so!