deep cycle battery ,used on UPS,INVERTER/CHARGER HB series maintenance-free lead acid storage battery is widely used for telecom systems, banks, finance, securities ... alarm system power resources, and sun-energy system storage resources. type:HB640net weight;2.3kgproduct meas:15.2*6.5*10cmgurantee ... and antirust 7, Analyzed pure electrolyte with little local action dry type deep cycle battery 6V/4AH