I suggest don't... just buy a good power supply at least 20A. As you love this hobby even more, you will appreciate what you bought in the 1st place.
Secondly, you might end up burning the charger or get self burn. 240V is not friendly thing u know.
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus