Digital Battery Charger with Output Reverse Polarity Protection delivers a measured constant current to the battery until the manufacturers specified maximum battery voltage is attained. The Digital Battery Charger is designed for precise charging of Lead acid, sealed maintenance free Batteries. The Digital Battery Charger operates in a power supply rate of 90V – 290 VAC. Digital Battery Charger is provided with protection for output reverse polarity and output short circuit. Digital Battery Charger with Output Reverse Polarity Protection is a high frequency SMPS design charger that utilises battery charge algorithms for quick and accurate charging increases battery life.