Why would a power bank explode all of a sudden?. I decided to make some research and here’s what I could come up with.
1.) Wrong Circuit Design:
The internal circuit design of the power bank can also be another likely cause of explosion. For a power bank a good circuit should have
Power protection( a mechanism that ensures that the battery stops charging once it has reached full capacity), Short circuit control and temperature control.
If it doesn’t have any of the above features, the chances of explosion is higher.
2.) Poor Battery Quality
Batteries are the most expensive parts of a powerbank. Most of the power banks found in the market are made from either Lithium-ion or Lithium-Polymer batteries, though the lithium-ion is a cheaper option.
Most Manufacturers in a bid to keep prices down tend to use Lithium- ion batteries to save costs. In the worst case scenarios, they go to the extent of using recycled batteries which increases the chances or likeliness of explosion at a later time.
3.) Improper Usage
Exposing power banks to high temperatures or humidity can cause explosions. Overcharging of power banks is wrong. Also spilling water on it or leaving it near a heated area, like under the sun can cause explosions.