... -3000Ah; 2V,6V,12V,14V Long service life CE, ISO9001:2008 Battery case:ABS 55 years' battery factory, very low ... storage for up to one year without loss of efficiency or any applicable deterioration of battery preformance.Valve regulated lead-acid battery ... , Ni-Fe, Valve -regulated Lead-acid battery, Li-ion battery, chargers and production machines for battery, totally 500 varieties.Occupation 262,000 ...