Well,

I did my own research, yes, Li-po's are too much to maintain and balancing is another issue, I found the charger of it, but unlike wall chargers it's nothing like any charger, it needs a 12 to 15 volt input, and li-pos are not supposed to be charged more than 1amp, so it's so much for me, so I have decided to goto nimh, I ready so many things about nicd as well, some say nicad is better, some say nimh is better, I think performance wise nimh is more better, rectify me if I'm wrong