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Over the weekend, we saw the news of how a
power bank exploded on the body of it’s user. This
happened while he was charging his phone with the
power bank in his pocket . We may ask, Why? Why
would a power bank all of a sudden explode? You
guys requested we do a piece on why power banks
explode, my curious mind was also yearning to
learn this too. So I hereby present to you: The likely
causes of a power bank explosion.
1.) Poor Battery Quality
Batteries are the major components of power
banks, infact that’s the most expensive part when
you try to cost it individually. Most of the power
banks in the market are made from Lithium -ion or
Lithium-Polymer batteries, though the former is a
cheaper option.
Manufacturers , (in a bid to keep prices down) tend
to use the Lithium- ion batteries to save costs. In
worst case scenarios, some manufacturers go to
the extent of using recycled batteries. This
increases the chances or likeliness of explosion at a
later time.
2.) Wrong Circuit Design :
It doesn’t just end with the quality of battery. The
internal circuit design of a power bank is another
likely cause of explosion. For a power bank a good
circuit design entails the following :
* Power protection: A well made power bank should
have power protection. This is a mechanism that
ensures that the battery stops charging once it has
reached full capacity.
* Short circuit control: A good power bank should
have it’s circuit fully insulated to prevent short
circuit. (Short circuit means touching of wires)
* Temperature control: The ideal power bank should
have a kind of temperature control such that once it
hits a particular temperature, it shuts down to cool
off.
If one or more of these are not built into the power
bank, the chances of a likely explosion in the future
are high.
3.) Improper or Wrong Usage
What can cause a power bank to explode could be
traced to us – the users. How do you handle your
power banks? Exposing power banks to high
temperatures or humidity can lead to what can
cause explosion . Overcharging of power banks is
bad practice. Especially when it doesn’t have power
protection like we explained above. Other bad
practices include spilling water on it or leaving it
near a heated area, like under the sun.
So now you know the likely causes of a power bank
explosion. Meanwhile be careful of dirt cheap power
banks, also do not use power banks in your
pockets. Cheers. |
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