battery failure
Signs a Power Bank Is Failing: Swelling, Heat, Smell
Six warning signs your power bank is failing: swelling, abnormal heat, chemical smell, visible damage, capacity collapse, and erratic charging. What each one means and what to do.
What "Protection Circuits" Actually Do in a Power Bank
Protection circuits guard power banks against overcurrent, overvoltage, shorts, and overheating. Here is what each of the 7 layers actually does, where they fail, and why the chemistry underneath t...
Why Do Power Banks Catch Fire? The Chemistry Behind Battery Fire
Every power bank fire follows the same chemical chain reaction: thermal runaway. Here's what actually happens inside the cell, why conventional lithium-ion is vulnerable, and what semi-solid-state ...