Deconstructing a Sony VTC4 (US18650VTC4) November 26 2014, 2 Comments
We recently inspected a shipment of Sony VTC4 18650 batteries. A 300 piece shipment is ordinary for wholesale 18650 orders. Here are a few shots from a deconstruction that we thought you might enjoy. We used a pipe-cutter to take off the top cap in two slices, and also cut off the bottom of the negative terminal looking for protection. This battery is unprotected (no protective circuitry found) . Please don't try this at home.
The electrolyte did leak out a little bit after cutting the battery opened. It was deposited in a hazard-waste basket of a large electronics center when done.