If a power outage is long enough for the battery to go flat, I need to power on things gradually, or my UPS will act as if overloaded. The stuff I've plugged in

If a power outage is long enough for the battery to go flat, I need to power on things gradually, or my UPS will act as if overloaded. The stuff I've plugged in barely amounts to 280W. It's a home lab, so no much harm done, but also, so much for unattended recovery from failure. It's good for brief outages caused by thunderstorms, though, so still better than nothing.