Keep your sump pump running during power outages with this 2500W battery backup system from Vevor. It uses pure sine wave output for stable power and supports dual-pump operation for added protection in basement flooding situations. The plug-and-play 3-prong design simplifies installation, while the LCD screen and LED indicators provide real-time system monitoring. A 3-stage charging system helps optimize battery performance and compatibility with multiple battery types. Built-in protections help safeguard the unit, connected pumps, and battery system during emergency use.