I'm currently the proud owner of 2 non-functioning rack mount UPS, would anyone like one for anything (parts) before I dispose (recycle) them. The first one, an APC 3000 Smart-Ups. When I plug it in, I get nothing. No lights, beeps or fan movement. I've checked and reset the breaker. I called APC and they think that its a circuitry issue and not the batteries. The reason being, that nothing happens when its plugged in. If it had a bad battery, the fan and lights should still come on. The second one, an APC 600 Smart-Ups. This one looks like it should work, but it displays the "Replace Battery" light and constantly sounds an alarm.