Then dampen a microfibre cloth with 70 per cent isopropyl alcohol and wipe the silicone middle of the charging area. Do not use window cleaning products, residence cleaning products, aerosol sprays, solvents, ammonia, abrasives or cleaning products that include hydrogen peroxide to clean your MagSafe Charger or MagSafe Battery Pack. https://www.amazon.com/AnHome-Keyboard-Cleaning-Computer-Electronic/dp/B0CBBTY3BC