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How to modify 18650 3.7V 4400mAh positive terminal to place a tab fo notebook battery

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Narciso Peleida

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Hi,

I am plannig to replace 18650 3.7V 4400mAh on my notebook battery but the cells available have a positive terminal "nose", which make them longer than the original ones. How can I modify these cells to fit in the battery case? Is it dangerous to use a file to make them lower? Any other idea to solve this problem?
Many thanks for your help.
Narciso:?:
 

Usually stainless steel construction to keep out nasty acidic lithium salts. If just the cold welded tabs, OK to grind down 50%. but at your own risk of shorting, for which they need internal fuse. Some dont. Sounds like Chinese tolerances.

Unless someone changed the spec, that I do not know well.
18.6 × 65.2 = 18650 or is it 18.6 × 65.0 ??

18.6 + 0/-0.7mm. 65.2 + 0/-1.0mm. I think
 
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