5 Read the email. Which portable charger is better for Mac: the Max Power or the Power Booster? Why? Price Weight Size Ports Max Power £29.99 76 grams 12x3x2 cm 2 Power Booster £20.99 402 grams 14x6x3 cm 1 Safe Charg £15.99 140 grams 10x3x2 cm 3 Hi Ray, You want to know about a good portable charger. T Power Booster isn't too bad, but I don't think it's the best choice. It's only got one port and it's too big ar heavy. You can't carry it in your pocket. In my opinic the Max Power is better. First of all, it's got two port What's more, it's smaller than the Power Booster. Finally, it's lighter. ports It's more expensive than the Power Booster, but I don't mind. Cheers, Mac bod