I have a site with a TSP+BCM 48V combo. Last night, something caused the AC breaker to trip, putting the site on battery. We didn't see the alert until about 12 hours later. At this point, the batteries were down to ~42V. When our guy arrived on site, he reset the AC breaker, and AC power was restored. Immediately, the battery breaker (breaker between positive side of the batteries and the BCM) tripped.
Now, each time that we reset the battery breaker, it causes the AC breaker to immediately trip. At this point, the site is up on AC with no battery. Any ideas what would be causing this? Do you think the batteries are causing the BCM to draw too much current? Could one (or more) of the batteries be dead/bad? The site *did* run successfully on battery for nearly 12 hours. Josh
