Charge your MacBook with an original Apple MacBook charger. Not every charger is suitable for every model. If you choose a model with too little power, the MacBook doesn't charge or charges very slowly. You charge your MacBook Neo with at least an 20W adapter. You need at least a 30W charger for a 13-inch MacBook Air and at least a 35W charger for a 15-inch MacBook Air. Have a 14-inch MacBook Pro? Charger of 70W or more are suitable. Choose a 140W charger to charge your 16-inch MacBook Pro.