Exactly why 18650 battery names like VTC4, VTC5, Samsung 25R, are confusing everybody

Naming conventions used in tech are usually pretty easy to follow. But it's all too often consumers expect a naming convention to hold true, and when ...

Understanding 18650 explosions with Mount St. Helens

This is Mount St. Helen, one day before it erupted. There is no smoke, no magma, just an eerily silent mountain visible. Let's talk about 18650 bat...

Gigafactory & The Rechargeable Revolution

Lithium ion batteries for electric vehicles If you haven't heard - the Gigafactory is coming soon. A factory built by Tesla Motors - it's going to ...

Awesome Batteries Part 2 - Inspecting the Samsung 25R

Table of Contents Introduction Official Data Sheet Visual Inspection & Measurements Technical Discharge Test Checking Resistance E-cigaret...

Deconstructing a Sony VTC4 (US18650VTC4)

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 f...

Awesome Batteries Part 1 - Inspecting the New Panasonic-Sanyo NCR18650BF

Table of Contents Introduction A Brief History Panasonic Official Data Sheet Visual Inspection, Measurements, Unwrapping Technical Discharge Test Che...