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About product and suppliers:
        Alibaba.com offers 3,772 300mah li-polymer battery products. About 74% of these are rechargeable batteries, 3% are power banks, and 1% are primary & dry batteries. 

A wide variety of 300mah li-polymer battery options are available to you, such as li-polymer, li-ion. You can also choose from prismatic, pouch, and aaa. As well as from 4.5v, 3v, and 1.5v. And whether 300mah li-polymer battery is free samples, or paid samples. 

There are 3,789 300mah li-polymer battery suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and India, which supply 99%, 1%, and 1% of 300mah li-polymer battery respectively. 

00mah li-polymer battery products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,465 with ISO9001, 738 with Other, and 94 with ISO14001 certification.