Author/Source: mAh stands for milliampere-hour, which is a measure of how much electrical charge a battery can store. See the full link here
Takeaway
The article is about a tech expert who bought a super cheap, high-capacity battery pack from eBay to see if it actually worked. He found out it was a fake and didn’t hold nearly as much power as advertised.
Technical Subject Understandability
Beginner
Analogy/Comparison
Buying this battery pack is like ordering a giant pizza, but when it arrives, the box is mostly empty with only a few slices.
Why It Matters
It’s important to be careful when buying electronics online because some sellers make false claims. The author discovered that the battery pack only held about 4% of the power it claimed, meaning you can’t rely on it to charge your devices when you need them.
Related Terms
mAh
Tech Teacher 
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