Adapter: Connects from output cable of V72 or V88 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.
Apple: Charges MacBooks manufactured after June 2012. Confirm that the voltage output switch of the Voltaic 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.
Free Voltaic Sticker!