so if i get 3 volt charger?Welcome to AAC @giojoxa
Applying 5V to a 3V device is risky. It might work or it might damage the device.
Well, you could use a buck converter module to accept 5V and drop it to whatever is ideal. The little modules are everywhere, you just need to choose one of a good physical size can take 5V in and be adjusted to about 3V. You also need to make sure it can handle the current, which is bound to be under 1A.i done it but it spins too fast, looks no ssfe so i need less than 5 v