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About products and suppliers:
106,497 portable charger power products are offered for sale by suppliers on Alibaba.com, of which power banks accounts for 60%, solar energy systems accounts for 4%, and switching power supply accounts for 1%. 

A wide variety of portable charger power options are available to you, such as dc, micro usb, and double usb. You can also choose from usb, ac, and mini usb portable charger power, as well as from fast charging, ultra slim, and waterproof portable charger power, and whether portable charger power is ce, rohs, or un38.3. 

There are 105,361 suppliers who sells portable charger power on Alibaba.com, mainly located in Asia. The top countries of suppliers are United States, China, and Hong Kong S.A.R., from which the percentage of portable charger power supply is 1%, 99%, and 1% respectively.