The Luna with battery option is the new version of Motif Medical's best breast pump. It's powerful, rechargeable, and portable. The same sleek and lightweight design that provides More Milk in Less Time now includes a battery that lasts 2+ hours between charges. This breast pump is an upgrade item that requires an additional out of pocket cost. If you do not wish to pay an upgrade fee, we also offer a wide selection of fully-covered breast pumps.