Laptop battery re-sellers are misusing the term “Grade A Cell” to incorrectly imply Good Battery Performance
In short, the term” Grade A Cells” means NOTHING! The term “Grade A Cells” has been used by hundreds of Amazon battery retailers and online stores as a marketing phrase designed to convey a sense of top quality and performance. Too bad that’s not what it means!
There are Grade A, Grade B, and Grade C types of battery cells. A manufacturer will rate the cells they produce so as to categorize the performance differences of ONLY the cells they produce. So one manufacturer’s type of “Grade A” may be equivalent to another manufacturer’s “Grade C” or worse!
You may be skeptical and probably thinking, “If it means nothing, why do I see sellers on eBay or Amazon saying that their laptop batteries use only Grade A cells?”
Good question. The generic laptop batteries that are sold on Amazon and eBay use this term liberally in a market context. They want it to appear that the Capacity, Cycle Life and Safety features of that shockingly cheap battery are every bit as good as Dell, HP, ASUS, or Sony branded battery that costs $150! If they didn’t put a positive spin on their battery packs, how else would they get you to think the two batteries are equivalent?
From a safety perspective, there are many manufacturers in China and other places that design and produce very inexpensive Li-Ion cells that are barely suitable for products being sold in the EU or US markets. It really is akin to playing Russian roulette with a flammable and possibly explosive product. For more information about the dangers of cheap Li-Ion laptop batteries, click here.
In the end, a battery pack that claims to have been made of “Grade A cells” may still yield poor performance because it was made with poor manufacturing processes and older technology.
For further reading about battery cell grades we recommend the following article Battery Manufacturing and Battery Cell Grades by Dan Hagopian.