The product of 6-SPB series is a newly developed Spiral Battery by Shoto Group. With the unique winding structure, high assembly pressure and valve opening pressure, the battery dehydration is greatly reduced. Compared to ordinary battery, the battery has a superior high temperature discharge performance and large current discharge performance, greater security and better fast charging capability and so on. The product is protected by five patents, namely:02112897.9、03152809.0、03221098.1、 200310112676.1、200510040205.3.