![Amazon.com: 100% Authentic Samsung25R 3.7V Rechargeable 18650 Battery 25R Flat Top, Real 2500mAh(4 Pack, with Free Plastic Case) : Electronics Amazon.com: 100% Authentic Samsung25R 3.7V Rechargeable 18650 Battery 25R Flat Top, Real 2500mAh(4 Pack, with Free Plastic Case) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71rr3bl4HhL.jpg)
Amazon.com: 100% Authentic Samsung25R 3.7V Rechargeable 18650 Battery 25R Flat Top, Real 2500mAh(4 Pack, with Free Plastic Case) : Electronics
![Lithium Ion Polymer Battery - 3.7v 2500mAh : ID 328 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits Lithium Ion Polymer Battery - 3.7v 2500mAh : ID 328 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/328-06.jpg)
Lithium Ion Polymer Battery - 3.7v 2500mAh : ID 328 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![Amazon.com: SPARKOLE 7.4V 2500mAh Li-ion Rechargeable Battery for Speaker/Remote Control Toy/Bluetooth Boom Box/Portable DVD Player/Outdoor Lighting : Toys & Games Amazon.com: SPARKOLE 7.4V 2500mAh Li-ion Rechargeable Battery for Speaker/Remote Control Toy/Bluetooth Boom Box/Portable DVD Player/Outdoor Lighting : Toys & Games](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61f4aSTzx8L.jpg)