shortThis long-lasting home backup solution provides 7,988 watt hours of power and the ability to backup 10 circuits in your homemaking emergency power outages much less stressful. Equipped with a Yeti Pro 4000, Yeti Pro Tank Battery, Haven 10 transfer switch, and mounting plate.featuresbox2HAVEN 10 HIGHLIGHTS Customized Backup During Outages Installing the Haven 10 with your Yeti PRO 4000 gives you power for essential circuits during an outage; Cover 10 Essential Circuits The Haven 10 can back up as many as ten 120 V circuits in your home. You get to choose which circuits are backed upcommon options include Wi-Fi routers, refrigerators, family room outlets, and kitchen outlets.; Convenient Instead of hauling your Yeti PRO around the house to power devices one at a time during an outage, leave it in one spot connected to the Haven 10 for power throughout your home.; Automatic Power Switching When grid power goes out, the circuits connected to the Haven 10 will switch to using power from the Yeti PRO in less than ten milliseconds! Just make sure your Haven 10 is connected to the Yeti PRO and that your switches are set to "GEN". It switches over so fast, you might not even realize the grid went down!; TANK PRO 4000 HIGHLIGHTS Modular Scalability Not sure how much power you need? Not a problem. Get one or two expansion batteries now. When life changes, the modular design makes it easy to add more power.; Increased Capacity The Tank PRO 4000 has increased capacity over older models so you can power more for longer. Since it's easy to add on more expansion batteries, you can get enough power to keep your home running for days on end.; Easy Integration The Tank PRO 4000 nests snugly with the Yeti PRO 4000 to build out your home backup system. Once connected, the two devices function as one unit and charge and drain together.; Long Lifespan Improved LiFePO4 battery tech gives the Tank PRO 4000 a 800% longer lifespan than our previous generation expansion batte