Electric Bikes - more power for ebike?

hello all i am mike from sydney,am new to ebikes and just bought a currie type setup (ezip)24 volt 10ah lead acid and its heavy lol,my bike wasnt too bad for aussie prices $450 and i am reaonably happy with it but it does lack the power to climb even any small hill,cruising speed on the flat not too bad,can i increase the power on my bike to make it do hills and any tips would be most helpfull,this bike is now my main mode of transport,oh my bike has a 200 watt motor as that is the legal limit here but i am still thinking about getting a bigger motor.or should i just go buy a more powerfull type bike?cheers

hello all i am mike from sydney,am new to ebikes and just bought a currie type setup (ezip)24 volt 10ah lead acid and its heavy lol,my bike wasnt too bad for aussie prices $450 and i am reaonably happy with it but it does lack the power to climb even any small hill,cruising speed on the flat not too bad,can i increase the power on my bike to make it do hills and any tips would be most helpfull,this bike is now my main mode of transport,oh my bike has a 200 watt motor as that is the legal limit here but i am still thinking about getting a bigger motor.or should i just go buy a more powerfull type bike?cheers Light weight EFFICIENT motor, Lightweight bike, enough lightweight batteries to do your trip is what you may desire, but where is such a package ? If it can be found how much will it cost is the question? then how long will it last for is the other.

ok ill try again,i need my ebike to go abit faster not much but just a bit more power for them hillsmy bikes specs are its a currie rear wheel drive ezip,200 watt brushed motor,24 volt 10ah lead acid batteries, it says on the controller its 25 amp output.first i am assuming if i just change to a bigger motor say 450 watts that will give me more power also if i up the current a bit that may give me more power am i correct?any other tips?