I tested the 6-cell 18650 based chunky USB power bank to see what it's actual capacity was. I certainly didn't expect it to be anywhere near the suppliers 20.000mAh rating, but closer to 8,000mAh.
Sadly it turned out even less, but it's still a very viable block of power.
Sadly it turned out even less, but it's still a very viable block of power.
I'd love to see more power-bank teardowns, there's so many on ebay it's mind boggling!
wow, I have the same power bank but rated at 50,000mAh, it comes out to be around 8000mAh though, you can't beat the cheap Chinese stuff!