I removed debug_min = 6 from the config and that seems to have helped? so my config just reads [US3000] driver = usbhid-ups port = auto vendorid = 2b89 productid = ffff subdriver = Arduino desc = "Ugreen US3000 via USB" onlinedischarge_log_throttle_sec = -1 lowbatt=20 ignorelb override.battery.charge.low = 20 override.battery.runtime.low = 100