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About product and suppliers:
        Alibaba.com offers 3,382 4000mah battery capacity products. About 27% of these are rechargeable batteries. 

A wide variety of 4000mah battery capacity options are available to you, such as li-ion, li-polymer, and ni-mh. You can also choose from free samples, paid samples. 

There are 3,396 4000mah battery capacity suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 99%, 1%, and 1% of 4000mah battery capacity respectively. 

000mah battery capacity products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 881 with ISO9001, 421 with Other, and 93 with BSCI certification.