48V 13Ah TIGER SHARK Lithium Battery Electric Bicycles E-Bike w/ Charger 500W. X-go TIGER SHARK e-Bike Battery Specification: Battery Type:Lithium-ion Rated Voltage / capacity:48V / 13Ah Battery N. Customer satisfactory is most important to us. Please give us at least 24 hours to reply! Our office hour:-9:00a. (GMT+8) of Monday to Friday.