Samsung’s smart📱phone batteries are all tested in an in-house lab🔬, yes, even its explosive Galaxy Note 7⃣ batteries. Competitors like 🍎 Apple & Lenovo get their tests done at third-party locations. However, the 🇺🇸US wireless industry 👥group, CTIA, audits🔎 these labs, including Samsung’s, to ensure 👥personnel are qualified👓, testing is up to a certain standard, & manufacturers pay no influence in the tests👀. CTIA's CTO Tom Sawanobori said🔉, “We've certified over 1,500 batteries. This is the first time we've had an issue.” Meanwhile, Samsung is still trying to figure out what went wrong⚠ with its batteries as it tries to recall the 2.5 million Note 7s📱 it sold.