speedy9 wrote:And do you know that these cheap, little-used batteries from private individuals are usually batteries that should be disposed of or returned to the manufacturer because they were replaced by the manufacturer as part of the exchange of dangerous series? They get a new one, checked from the manufacturer, and the old one is sold on Allegro ...
So the claim that you bought the original battery for 30-40% of its normal price is out of place.
Since you know which models, write. Everyone will beware of such.

- some will say that the battery has been used incorrectly or exposed to extreme external factors, and others that you have not used original components.
Not every battery will belong to the series, as you put it "dangerous" .. I resold mine and it works in the same way when I buy it myself (I reject scammers in advance).
So I do not understand what is out of place here .. purchase of a cheaper, efficient but used battery. This appeals to me more (it was used and is serviceable) than the replacement (which should work).
"If I get a replacement and a laptop to test it, then I can say that these models (batteries) for this laptop model are worth trusting (under certain conditions

Otherwise, they will be burdened with the same risk as the "dangerous" ones.