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
