Our factory is located in Shenzhen, Guangdong Province, is a factory that has been specialising in electric vehicles for 10 years with battery development, manufacturing and upgrade services dedicated to vehicles that have little to no original OEM battery to extend their life. After replacing the batteries, owners will be able to enjoy their beloved cars longer and get a longer range.Vehicles we service: BMW i3, nisssan leaf ZE0, AZE0, ZE1 and ENV200.Battery solutions we offer: We have both plug and play complete battery packs and individual battery modules + kits for you to choose from.We provide technical guidance in the form of videos, installation instructions, telephone calls, etc.Our after-sales service: CE, MSDS certified, overseas service point after-sales service.