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About product and suppliers:
        Alibaba.com offers 4,029 300mah li-polymer battery products. About 67% of these are rechargeable batteries, 1% are digital battery, and 1% are battery packs. 

A wide variety of 300mah li-polymer battery options are available to you, such as free samples, paid samples. 

There are 4,029 300mah li-polymer battery suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% 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 1,401 with ISO9001, 469 with Other, and 76 with ISO14001 certification.