Amazon.com: Better Battery Alkaline AAA and AA Batteries – Long Lasting Performance Carbon Neutral with Storage Box Recycling Program 20x Batteries, (BBCAA20AAA20) : Health & Household
1.5 inch metal mechanical thing. Doesn't move but looks like it used to. Pulled it out of some cremains but don't think it's anything surgical related. : r/whatisthisthing
How to convert a 3.7V 800mAh rechargeable battery to supply as a 1.5V AA battery in my wall quartz clock - Quora