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Chinese powerbanks are so fucking dangerous. Cheap price = cheap quality. Alright, I get it, but that's not my point.
Today my dad gave me his powerbank and wanted me to upgrade it.
A 50k mAh powerbank, but it is far away from 50k mAh. He bought 12 6000mAh rechargeable batteries.
Before I started replacing it and resoldering the powerbank, I decided to open up the Chinese 50k mAh battery. A lot of aluminum foils covering the batteries. That's not great. A very high chance for a short circuit to happen.
Anyways, I carefully took the aluminum cover halfway out.
I took a (plier?) with plastic handles and grabbed the pack of batteries with it to not put myself into danger.
And BOOM! A short circuit.
Btw. It smelled very weird when I took the aluminum cover off of the pack.
28 -
Well, the coolest thing that's public?
MultiCube! https://github.com/filthycoding/...
Non-public: I also once had a Raspberry Pi 2 placed on top of a bus station with a powerbank (and a little rain protecting covers) and a camera module, with a little piece of image analysing software that would notify me when my bus is coming.
This worked via Google Cloud Messaging. Initially I wanted to update that to Firebase Cloud Messaging, but I decided that I didn't need that system anymore and decided to give the Raspberry Pi 2 to a friend instead.14 -
People: cry how we are in an energy crysis, how expensive Li batteries are, how expensive and scarse are the resources and how wasteful the production process is
also people: pop 500mAh Li batteries in disposable e-cigs that get tossed away in the streets with ~75% of the charge left
me: picks those e-cigs, takes the batteries out, solders them in parallel and makes a proper powerbank for free23 -
What is the difference between battery and rated capacity. I tried googling and theres a very technically paper with the definitions...
But what does it mean in terms of using it to charge my phone.
#Aliexpress US $6.15 72%OFF | Essager 10000mAh Power Bank Slim USB 10000 mAh Powerbank Portable External Battery Charger Pack For Xiaomi Mi 3 iPhone PoverBank
https://a.aliexpress.com/_sZXhqk
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