Originally Posted by Lin_Latte

Yup, a cheap Sondors that I have modded with a 52v 20.3Ah battery and 25a controller. This entry level ebike can now out perform a 4K - $7K production ebikes out there at a fraction of the cost. Still using the stock 350w motor believe it or not. If you're interested in the battery, this is where you can get one.

The L3 52v 20.3Ah Panasonic triangle battery | electro bike world