AAA Battery

These fit my kid's toy and the hallway clock without any wiggle, which is exactly what I needed since the old ones kept losing contact. Only gripe is I wish they came in a bigger pack because I'm already down to my last two.

Picked up a pack for my TV remote and they've been holding up fine for a few weeks now. The black casing matches my other gear, which is a small thing but I noticed it. No leaks or corrosion so far, which is more than I can say for the last batch I bought.

Swapped these into my kitchen scale and they've been holding steady for weeks now, no drop in readings. The black casing also matches my other gear, which is a small thing but nice.