Monthly Science: CR2032 Lithium Cell Life

One of the Hobo dataloggers asked for a new battery during its most recent data dump. The old battery dates back to January 2015:

Maxell CR2032 lithium cell - 22 month life
Maxell CR2032 lithium cell – 22 month life

That was when a batch of Energizer cells failed in quick succession: it wasn’t the datalogger’s fault. I’ve been handling the cells a bit more carefully, too, although that certainly doesn’t account for the much longer life.

With batteries, particularly from eBay, you definitely can’t tell what you’re going to get or how long it’ll last; that’s true of many things in life.