See if you can find an O-ring to act as a bushing, to hold the battery centered in the compartment. An alternative would be to fing some copper wire that you can make into a hoop to go around the cell, holding it centered. You'll need wire about 3/32nd in/ 1.5mm in diameter.
Originally Posted by Kruger
Edit - make certain the contacts in the battery compartment are clean - the cell that "died' abruptly may not be dead.
Also, the 675 is a wee bit thinner than a 625 - a small washer or a pad of tinfoil might be the solution. Be careful not to short circuit the cell, put any washer or pad on the positive side away fron the negative terminal and the tiny gap between it and the shell (positive).
Be advised that Wien cells do not last long. Neither will the 675 hearing aid cells unless you block off 3 of the four airholes. You can block the holes with a tiny dab of glue.
Last edited by E. von Hoegh; 08-24-2013 at 11:12 AM. Click to view previous post history.