We are a professional car battery manufacturer which has been established more than 24 years ago since 1993. Our main product is maintenance free car battery  1.Production Technology: Jiangxi Oursun New Energy Co., Ltd has 2 production technology: Casting & Expand. And we adopt VALTA Germany Technology. Since main machine was bought from Italy which keep ahead of top technology  2.Warranty time: As we adopt Top technology so we can give a good guarantee for our clients which can give you at least one year warranty time  3.The capacity of production ability: We are top 5 manufacturer in China at car battery industry. We are able to produce 500,000pcs in one month