MGE battery extension modules share the same design and 3U form factor as the Pulsar MX 5000 RT they are intended for. They come complete with rackmount hardware kit and battery connection cable. The UPS will automatically detect how many modules are connected and adjust the battery runtime parameters accordingly. Up to 4 each battery extension modules can be connected to Pulsar MX 5000 RT to get 3 hours of runtime at half load. These batteries are hot-swappable for increased availability.