Lipo Battery 1S 3.7V 300mAh 20C for mini drone - Swiss Online Shop
702032 3.7v 300mah lipo battery for Electronic Appliances - Alibaba.com
Lipo-Akku 3.7V 300mAh
3.7v lipo battery single cell, Hobbies & Toys, Toys & Games on Carousell
2pcs 3.7 V Lithium Battery 852540/702540/752540 High Ratio In Rc Aircraft Power Protection Board Four Shaft Current - Button Cell Batteries - AliExpress