Hello, I have a mid-2007 MacBook 2,1 (White casing) that I'm retiring for the MacBook Pro Retina. I still have the MagSafe charger. If I buy the MagSafe1 to MagSafe2 adapter will it safely charge my new MBPR? I am ruined about damaging the battery but would love the convenience of "charging anywhere" in my apartment. Thanks!