The AC500 + B300S Home Battery Backup is the perfect solution for keeping your home powered during an emergency. With a 500 watt AC inverter, this backup system is able to provide power for electronics like computers, refrigerators, and medical equipment. The B300S battery has a 300Ah capacity, a 10-year lifespan, and can be recharged up to 2000 times. This system is easy to install and provides reliable and efficient power when you need it most. With its compact design and long-lasting battery, the AC500 + B300S Home Battery Backup offers a reliable and convenient way to ensure your home is never without power.