We are manufacture the sealed lead-acid battery for more than 10 years in Shenzhen Hi-Tech Zone ,our production capacity  is about 0.5millions pcs per month,we had modern equipment and the best technical ,and have the a strictly quality control system based on ISO9002.Our UL number is NK31699,CE number is G4M19912-9468-E-16.
Our battery are 100%  tested on line for voltage ,capacity ,seals and all vents are 100% visually inspected during the final asssmbly process .
If you need the high-technical battery ,please don't hesitate to contact with us immedinately ,tell your requirement to us,we can do our best for you .

Thanks & best regards.