The New Hotness

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

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…