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December 9, 2019

Flat lithium batteries made simple


Forget about trying to read the microscopic print on these things.

One (1) of three (3) sizes will work for 99% of devices.

They are pictured above, left to right:

• Duracell 377 

• Maxell LR44

• Energizer CR2032

This message approved by Gray Cat.

December 9, 2019 at 12:01 PM | Permalink


I just always buy mine from Amazon.

Another fun fact, that the numbers are a measurement of their size.

Posted by: Rocketboy | Dec 10, 2019 2:26:35 PM

I had to buy a CR2450 for my garage door sensor the other day. I'd never seen one of these. Apparently it is just a CR2032 that is SLIGHTLY bigger radius and twice the height -- allowing it to last just a little longer.

I pick up the coin batteries in bulk from Harbor Freight, so...I tried this. Worked...


Posted by: Clif Marsiglio | Dec 9, 2019 12:56:18 PM

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