VorTech Battery Backup This product is for any serious aquarium hobbyist that owns an EcoTech Marine VorTech pump. By adding the Battery Backup you are insulated from power interruptions for up to 36 hours of protection with the MP40w and up to 72 hours of protection with the MP20. In 4-10 hours of no flow, an aquarium with all its fish and corals begins to die: Buy time, it`s rarely for sale. Product Features * Reef Tank Insurance in an aluminum housing. * Backup power for 30 or more hours on a VorTech Pump. * Can connect to another Battery Backup for two times the run time. * Comes with trickle charger so you`re always prepared. * Complete package comes with all the wiring cables needed. Product Benefits * Designed to power the EcoTech Marine VorTech Pump. * Knowing you are a responsible reef keeper. * Vacation better. Sleep better. Peace of mind. Specifications * 18 Amp-Hour 12-volt sealed battery. * Powder-coated white aluminum housing. * Dimensions (L x W x H): 9" x 7" x 3.25"