Moderate drop: Indicates partial aging — monitor closely and retest soon. Severe drop or collapse: The battery is nearing end-of-life or has an internal fault. Tracking battery load test results helps ...

Battery-capacity testing is an essential part of battery maintenance. But how do you do it effectively? How do you know your UPS will have "enough battery" to provide the electricity your operations ...

Uncertain over a battery’s state of health? Andrew Pearce explores two units that can diagnose and perhaps recover failing cells. Nothing beats winter to show up a dodgy battery. Thick oil puts more ...