If you own a Tecno Android phone, you can now check online if the phone and the Tecno battery are genuine or not. This is possible on a web page created by Tecno Mobile. I guess the company find it necessary to come up with such web page considering the fact that some bad guys are now selling fake Tecno phones in the Nigerian mobile market.
To check if your Tecno phone is genuine, you will need the VC and imei of your Tecno phone. You can get these on the label inside your phone after you might have removed the battery from the back of the phone.
To check if your Tecno battery is genuine, you will need the serial number of the battery. You can get this on the body of the battery.
Once you have these info, you can head over to http://gc.tecno-mobile.com/index to for the genuine battery and genuine phone check.
Let me know if it works for you.