3.7V Rechargeable Li Polymer Battery LP855055 2500mAh With PCM and Wires
Good Qulity Liter Energy Battery 3.7v,2500mah,603090 Polymer Lithium Ion / Li-ion Battery For Toy,power Bank,gps,mp3,mp4 - Digital Batteries - AliExpress
LiPo Pouch Battery 785060 (3.7V, 2500mAh), 6.90 €
18650 Lithium-ion Rechargeable Cell - 2500mAh 3.7V 20A | The Pi Hut