I do not think any RC either eclectic or nitro should be done by children with out adult supervision. Charging batteries can be as or more dangers as nitro. How many children have a little ATV or motorcycle and put gas in it? That is more dangers then nitro fuel!!!!!!!!!!!!! You can spill the fuel we run on a hot engine or exhaust 99% of the time there is not a problem. Now with gasoline is a different story. So you would let your child charge a Lip battery with out supervision?