This is Leo from CSPOWER ShenZhen, we specialize in VRLA and GEL battery since 2003. The features of our products, * Certified ISO9001/ISO14001/OHSAS 18001 * AGM battery, GEL battery, Front terminal Battery, OPzV battery, Deep Cycle GEL battery. * 2V(200-3500Ah)/6V(4-420Ah)/12V(4Ah-300Ah), according CE,UL standard * Foucs on provide constant safe battery with long life, short delivery time. Quality is our life. Advantage of CSPOWER Battery Tech Co.,Ltd, * We do much better on cost than other Chinese suppliers, we produce battery lead plates by ourself; * We never use recycled lead, all our lead plates use 99.997% pure new lead; * We never use recycled plastic, Housing/Cover: UL94HB and UL 94-0ABS Plastic with fire resistance and water proof; * Our Terminal post: New Copper or lead material with maximum conductivity, enhance the high current rapidly. * Our Silicone GEL electrolyte: Import from Germany Evonick's Aerosil.