... UPS,INVERTER/CHARGER HB series maintenance-free lead acid storage battery is widely used for telecom systems, banks, finance, securities, emergency ... : 1, Lead and autunite alloy grid, ointment formed pole board, large content and long service life 2, lead-tin multi-alloy ... pure electrolyte with little local action dry type deep cycle battery 12V/40AHT(copper terminal)