I need a charger for my e bike Metakoo cyber link 100 mountain bike 42 v 4Ah I believe where can I get one

Hi There 

Charger for Metakoo C100 can be purchased from this link: 

https://www.imgadgets.com/products/replacement-part-for-metakoo-cybertrack-100-electric-mountain-bike?variant=43391272190167

Thanks

Can I start my bike with the charger only? Where can I get a charger ? 4a charger is that a 3pron?

here is the link for Metakoo C100 charger: 

https://www.imgadgets.com/collections/electric-bike-parts/products/replacement-part-for-metakoo-cybertrack-100-electric-mountain-bike?variant=43391272190167