MagSafe 2 Adapter - Female 5.5x2.5mm

Adapter: Connects from output cable of V72 Laptop Battery to post-June-2012 MacBooks. Salvaged and reconfigured MagSafe 2 Adapter on one end and female 5.5x2.5mm jack on the other.

Compatibility : If you are using this with a V72 battery, then confirm that the voltage output switch of the Voltaic V72 Laptop Battery (12V, 16V, or 19V) matches the voltage output of your AC wall charger as closely as possible. The MacBook Pro Retina may need to charge while asleep or turned off.