Battery temperature while charging

[Akmalidin]

Hello,
I am made a powerbank myself with li ion battery. I used boost converter and everything is fine, charging my phone. But the li ion battery and my boost converter is getting really hot while charging my phone.The battery capacity is 4400mah. I don't know the reason for such temperature. Please share your experience and theories.

 

[CWatters]

I recall your earlier thread on this so for the benefit of others see here before asking for more info...

https://www.physicsforums.com/threads/power-bank-phone-charger.884812/

Did you manage to get the charge current above 100mA?

 

[Akmalidin]

Yes, I was able to get 1 amp. Last post was genuinely helpful. But again, my battery is getting hot and i don't know why. Any ideas?

 

[berkeman]

I'm not comfortable with discussing this here on the PF. It falls under our dangerous topics prohibition. Sorry, this thread is closed.

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