Worst battery ever!

This battery is so incredibly bad! Even after many charging cycles after complete end loading (which is not so difficult, because it goes so incredibly fast), the battery is simply intolerable! I now have my original battery used again, which is too bad, but he's still better than this one!
I'm really disappointed!
Charged keeps the battery at a very low use (energy saving mode, WLAN "from" WhatsApp 1-2 times using short, no phone calls, no games, etc.) about 3 hours. It's a disaster!