Hi:

"F" cells are used in the Energizer 529 6 Volt Lantern Battery with spring contacts.
https://prc68.com/I/No6.shtml#F
-- 
Have Fun,

Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.
-------- Original Message --------
Date: Sat, 14 Jan 2023 01:50:49 -0800
From: Jim Pruitt <[email protected]>
To: [email protected]
Subject: Re: [Milsurplus] Yep, 'F' cells
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

I have 4 F cells that I got from Tektronix surplus (country store) back 
in the late 70's.? I got them to make a nicad battery pack for my Nosen 
Cessna 310 quarter scale RC plane.? They look like 2 D cells end to end 
for length and about the same diameter as a D cell.? I don't know what 
Tektronix used them in but they used them in something.

Jim


On 1/12/2023 5:43 PM, KD7JYK DM09 wrote:
This is just a guess as I don?t recall ever having seen a definition 
of an F-cell.? But if they were really called that, then it is a 
D-cell with wire leads instead of just flat contacts.
A D with wire leads?? I've never seen, or heard of that.? Any idea as 
to what, or where such a battery would be used?

Kurt