Float voltage

**Float Voltage**

Float voltage refers to the constant voltage level applied to a battery after it has been fully charged, to maintain its charge without causing overcharging. This voltage is typically lower than the initial charging voltage and is used to compensate for the battery’s self-discharge, ensuring the battery remains at full capacity and prolonging its lifespan. Float voltage is commonly used in lead-acid batteries in applications such as uninterruptible power supplies (UPS), solar power systems, and emergency backup systems. Understanding and correctly setting the float voltage is essential for optimal battery health and performance.