CR2016 Batteries

My dog's light-up collar needed new batteries and these CR2016s fit perfectly and brought the flashing back to life. They're holding up well after a few rainy walks, so the 3-volt lithium seems solid.

Swapped these into my kid's flashing wand and it lit right back up, no fiddling needed. The 3 volt output matches what the toy wanted, and now the thing actually survives a full evening of play.

My light-up wand died right before my daughter's birthday and these got it flashing again in seconds. They're the 3 volt lithium cells, exact fit, no wiggle. Ordered a spare pack for the rest of our flashing toys.