Why does sump pump battery backup not work It beeps but does not pump?

If a sump pump battery backup beeps but does not pump, it may indicate a few potential issues. Firstly, the battery could be low on charge or failing, preventing it from providing sufficient power to the pump. Additionally, there might be a blockage in the pump or discharge line, or the pump itself could be malfunctioning or clogged. It's essential to check the battery's condition, ensure proper connections, and inspect the pump for any obstructions or damage.