Pros: I bought these because I have one of the cheap stainless steel LED / laser pointers from this site. Since I carry my keys in my pocket, the buttons do get pressed and this drains the batteries faster. Also, after a long enough time, the threaded end for inserting the batteries will eventually de-thread and open up. Then I have batteries falling on the ground or floor as I pull out my keys. If I can't find them all, I do not need to buy a new LED/pointer.

Cons: Can't think of any, though I haven't tested them for mA-hr.

Other Thoughts:

Bottomline: These make a cheap backup for the items on this site that use these button cells.

Pros: * you get 100 of these, of which around 80 are good.
* i use quite a lot of these batteries with the led laser pointer keychains so having so many is a big bonus.
* theyre so much cheaper than what you can get them for in your local shop.

Cons: * this is the second time ive ordered these, the first time the package was just a mess and a lot, if not all of the batteries had discharged. it looks like teh packaging is a little better now.
* it would be so much better if they could package the batteries with a ibuprofen style package, where you pop the batteries out.

Other Thoughts: i will be ordering these again, so the pros clearly out-weigh the cons.

Bottomline: if you have non essential items that use these batteries, then buy these.

Pros: -mostly fresh cells
-price can't be beat

Cons: -packaging doesn't ship well
-packaging doesn't store well

Other Thoughts:

Bottomline: As others have noted, the price overcomes the cons for these, as long as you have a meter to test these as you use them. 90% of the cells are full and seem fresh, but there will be a few that aren't. I certainly wouldn't want to guess whether a particular cell is good or not, especially since many applications use 3 or 4 of these in series, making the series as weak as the weakest cell. I have some wheel lights and a cheapie laser or 2 that use these, but I actually don't go through that many of these. If I had it to do over again I wouldn't, but go for it if you actually use several of these cells each week. For my uses, a few dozen with better packaging would probably have been better. When I needed AG13's I ordered bulk from another seller who sold individually packaged cells for about the same price DX charges for their poor packaging. That's not the case for these AG3's though, you'd pay a lot more. The package is likely to come apart scattering at least a few cells during shipping, and it doesn't seal, so many are likely to self discharge before I get around to using them. Value is still good, even if you only end up using 3/4 of them, and discharge can probably be avoided by cold storage, so take my criticisms with a grain of salt. Just think about whether or not you'll ever use 100 before you order this tray of almost loose cells.

Pros: - Very cheap! Ofcouse, because in my country (holland) these cost way more and I wouldn't have bought them here.
- All working so far about 30 used.
- Don't bother your battery's are running empty, just get some new ones, there are so cheap!

Cons: - Poor quality of packaging. Dealextreme should really fix this. Very disappointing.
- The battery's run empty when you keep it between two fingers. Most people keep yellin not all the battery's are working but this is reason why, they pick them up on a wrong way.

Other Thoughts: Pick it up on the sides, although they are verry small, it is still possible. Also don't keep them in a spot where they can lose there power, so not in a metal box and so on.

Bottomline: Great battery's for a great price. There are not really big cons when you know how to use them right.