[albertobdq]

Hi everybody.

Here is Spain we had 2 cases of burning lipo, just in the pits while charging with proper chargers. The risk exist and it's bigger than risk you take while using Ni-MH.

Concerning their weight, well, if you are using a chasis layout with asimetrical distribution for batteries you'll have an issue with your weight distribution. Lipos are 100+ gr. lighter than Ni-MH, it's a huge difference for 1.5kg car.

Off course you'll have more power due to higher voltage and running time is also longer, but you'll need some device to switch off the car if voltage drops.

Ah, off course lipos are more expensive!