Replacing spark plugs - Toyota Corolla, 1.6L, 2004

On the occasion, I managed to purchase candles on the Internet for quite a cheap price. About 20 euros for 30 pieces of NGK. I already changed the candles after buying a car, somewhere 15,000 km ago. Therefore, I was in no hurry to put it until today, since there was nothing special to do, and the entire replacement takes place in 30 minutes.
Now there are a few differences compared to the first replacement. I bought the previous candles in the store, of the same brand, the only difference is the Japanese characters on the box on the new candles.
So, after the first replacement, the engine started up at two revolutions, quite lazily, but it was so, I sinned for 4 years battery, which will have to be changed soon. So she got started these 1.5 years. Yes, and white smoke (steam?) Poured out after the plant. As a friend explained to me, this is moisture. After 5 minutes, it passed and never happened again.
Now the car started up literally from a half turn, as if I had replaced the battery, and the car was standing for 2 days. And no smoke. Silence. The motor is barely audible.
Visually, I could not find any differences between old and new candles.
Photo attached.