This Medela battery pack power supply is a game-changer for any nursing mother who needs a reliable power source for their breast pump. It is compatible with Medela breast pumps that require 12Volts, such as the 57000 and 55000 models. The battery pack is made of durable ABS plastic and has a sleek black color that complements any pumping setup.

With an output voltage of 120V, this battery pack power supply ensures that you'll never have to worry about running out of power while on the go or during power outages. The Medela brand is well-known for its high-quality breast pumps and accessories, and this battery pack power supply is no exception. It is a must-have for any nursing mother who wants to pump with ease and convenience.