... 1.UPS battery:10~1000Ah 2.ISO, IEC, GOST, KS, CE, CRCC,IEC62259 ... negative oxygen recombination technology and gas recombination vent plug technology, therefore, the water consumption is ultra ... TECHNOLOGY OF GAS RECOMBINATION VENT PLUG The gas recombination vent plug is installed on Changhong maintenance free ... in battery charging are entering into the vent plug, it is catalyzed and combined into water, ...