eCoreCell (20pcs) CR927 3V 3 Volt Lithium Single Use Non-Rechargeable Button Coin Cell Battery

So far the likelihood of these working are 6/6! I wasn't expecting much for so little, but I'm impressed. I for sure expected at least one of them to be dead. Even then, I suppose you can afford to lose a few when you're buying 40 of them, especially at this price.The images are for little bicycle spoke lights I use on my camping trip to illuminate guy lines on my tent so I don't end up clotheslining one in the middle of the night. Disregard the discoloration of one of the lights. Somehow one of them wound up pink after a week long camping trip -- not the fault of the lights. LED's are essentially on/off devices anyway, so they either work or they don't (no dimming feature).So far so good! I'll update this posting if things change.

Total garbage product. They lasted maybe 5 seconds per set. Spend a little extra for a reputable brand that actually works.

These batteries seem to last 4-5 months for my dogs EZ lites. They are small, individually packed batteries that do the job. I can’t complain one bit.

Packaged well and works as expected. It's nice that they're all packaged individually.

they were what my husband wanted and they worked great for what he needed and now he has a few for another time.thank you

didn't need that many but couldn't beat the deal

This was really work my money. I got a lot more for the price than I would have at a regular store which I would have only got one battery.

These worked perfect! We bought some LED fidget spinners for a fundraiser. I got them at a good price because the batteries were out. Not one bad battery in the bunch and there were a few that had a larger size battery and these still worked. So glad that I found these!! The shipping was super fast too.