Fake cellphone-batteries that don’t work, but are manufactured (and disposed of) under environmentally doubtful conditions are a nuisance. You spend your money on ordering a battery, wait several days until it’s delivered to your home, then find out it is useless.
However, there are some good sides to it. I recall my first mobile phone ever, which I had bought in 1994 in Germany. At that time, people still sneered at me for having it (“Schwanzverlängerung”, “Angeber”, “Neureich”) ;-) – two years later, everybody had one. My first one was an Alcatel HB200 – at that time modern. Without making fun of its features compared to nowadays’ technology: the fact was that its battery was almost 500 grams heavy, and lasted eight hours standby or one hour’s worth of conversation. At one time, the battery-charger broke, and a replacement cost me around 150 Deutsche Mark – fifteen years ago, that was 10% of my monthly salary.
Fortunately, I never needed a new battery, because I got an entirely new cellphone after one year. But if I had, it would have cost around DM 270,- according to the dealer.

Compare that to nowadays’ battery-prices. It would still upset me to waste my time and money with a six-Euro-battery that doesn’t work. But the drop in prices at least makes it less of a catastrophe. :-)

By the way, I bought a new Nokia-battery charger in Taiwan as well while I was there, because I wanted one that fits the local electric sockets, instead of having to use an adapter.
It cost me the equivalent of 2,80 Euros!
It’s certainly not an original (though the difference is hard to tell), but it worked absolutely fine. The authentic Nokia-charger costs 16 Euros at home, and does nothing more than charging my cellphone battery either.

Perhaps I shouldn’t complain too much about the Chinese attitude to other people’s property, nor be surprised about why everybody wants to trade with them. :-/