They Lied about their 9V Battery Capacity

What is inside a 9V rechargeable li-ion battery? Some batteries claim 1300mAh but what does this mean? One would expect it to output 1300mA for one hour but this is not the case. Instead, it is referring to the output capacity of the internal li-ion battery, pretty useless for showing the capacity of the 9V battery itself. Still, it is a rechargeable battery and can help you buy less alkaline batteries. Check out the video so see the insides of this device and various measurement methods I used to arrive at these conclusions.

Rechargeable 9V Battery: https://amzn.to/3NeaI3k

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