There are thousands of e-bike manufacturers. Many use the so-called "dolphin" battery pack which is fairly standard and always removable. The dolphin doesn't lo

There are thousands of e-bike manufacturers. Many use the so-called "dolphin" battery pack which is fairly standard and always removable. The dolphin doesn't look as sleek as an in-frame battery but it's replaceable and it will usually provide longer range. https://bafangusadirect.com/products/52v-11-6-ah-dolphin-ebike-battery https://bafangusadirect.com/products/52v-11-6-ah-dolphin-ebi...