
Manuel Bonomi

Industrial engineering student
Italy
A month ago I bought a mini usb rechargeable flashlight from Aliexpress. But, when I received and tested it, I noticed that it doesn't work properly. It has a small LiPo inside which doesn't hold the charge so it lasts for a few minutes until the light dies. I'm figuring out how to solve this problem and maybe uprade the LiPo to a NiMh battery that doesn't discharge over time.
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Manuel Bonomi

Industrial engineering student
Italy
I found this little Sony camera battery thrown away with some others alkaline dead batteries. On the little label glued to the battery, it was written that it contains Li-ion cells rated 680mAh. I was so curious to see the shape of the cells inside, test them and see if they were reusable for som... view more


Manuel Bonomi

Industrial engineering student
Italy
We all know that our smartphone's battery is always out of juice when we really needed it, for example to make an imp... view more

