Some designs have removable batteries that allow for for swapping a lifeless one out for one more or extended-capacity versions to lengthen trip time. Generally, bigger batteries are heavier but deliver larger peace of mind. I analyzed the Opeak off-road and had many fun Driving on An array of trails, https://best-folding-ebikes46890.angelinsblog.com/26516515/how-best-folding-ebikes-can-save-you-time-stress-and-money