sliding button top NCR-18650B

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Location: Boise
sliding button top NCR-18650B

I just noticed these button-tops are held on only by the heat shrink. They slide all around the top of the cell. I have not experienced this type of behavior before. Is this normal?

HKJ's picture
Last seen: 2 days 1 hour ago
Joined: 05/24/2011 - 12:23
Posts: 7451
Location: Copenhagen, Denmark

Usual the button top is mounted this way:

and then centred (more or less) with a plastic washer:

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