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Hello,
 
Does anyone know what the two holes are for on the battery to the right? 
 
The battery came with my Sherwood ST1000 dive light and is marked as "IT-18650-A." I had bought two extras from B&H, which are identical except for the "-A" and these two holes. The new batteries work just fine. I'm curious if they're for some sort of pressure relief if it gets hot or perhaps just nothing at all. Thoughts? TIA
 
 

20210702_110555.jpg

20210702_111040.jpg

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I would think they are vents in case of overheating or over charging.

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