Is is harmful to use a charger of an other model on a different mobile?

Eg: I use a Lenovo mobile with a Samsung charger. Will it reduce its life or burst the battery? Please reply fast

I have a Lenovo phone myself. Tried different cords and mine is a OK. Probably may need to be the right voltage though.

No. Just will be slower to charge. Unless it has a high voltage then it may damage your battery.

Nope, as long as you're using phone chargers, it's fine. All of them works on 5W-1A.

Most likely no. Most phone chargers are same

Absolutely yes, but seldom to do so is okay.

No… Just shall be slower to charge… Unless it has a high voltage then it may damage your battery…