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1pcs [sd] 3.7v,450mah,[403035] Polymer Lithium Ion / Li-ion Battery For Toy,power Bank,gps,mp3,mp4,cell Phone,speaker - Digital Batteries - AliExpress
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4-Cell Battery for Current Devices | Compex International
3.7V Rechargeable Li Polymer Battery LP722728 450mAh 1.665Wh With Protection Circuit & Wires & JST SHR-02V-S-B Connector
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Electronics | Free Full-Text | A Comprehensive Review of Li-Ion Battery Materials and Their Recycling Techniques