Archive for January 26th, 2015

Last of the Energizer CR2032 Cells

All three Energizer CR2032 lithium cells installed at the end of November failed in December, with this being the most dramatic example:

Attic - Insulated Box - Early battery failure

Attic – Insulated Box – Early battery failure

Now, granted, it was mighty chilly in the attic, but failing after 18 hours seems unreasonable. So much for last month’s data.

I’ve started a batch of Maxell cells with the more reasonable date code 3O, which seems to indicate a manufacturing date of 2013 October.

We shall see…