i know that lipo battery if used badly, can burn....

but for example,,,, the new lipo graphene are more secure? like turnigy, or orion 4s for off road... what do you think?

Still can go up in a ball of fire if not using them safely and according to the manufacturer.

Silicon Graphene Lipos are often times high voltage LIHV.

If you mistreat them they will burn just like any other lipo.

I have had nicads and nimh batteries burn up as well but lipos keep going and going..

The risk is running a lipo that is not a hard case in situations when it clearly needs a hard case.

Wouldn't take any less precautions with graphene packs

Graphene for now is a marketing term. Any battery can catch fire if not properly used/maintained. Bigger the battery in terms of number of cells and capacity, the more potential energy is stored.

Graphene in general can handle more abuse in terms of sustained current draw as well as higher charge rates, but as others have cautioned already, they can be equally as dangerous if not handled properly. Use common sense and follow directions, invest in a charger that measures the IR of your cells so you know the current health of the pack. I replace any battery when any single cell goes above 15mΩ as my personal safety preference:

Which charger is the best?