![Lithium Ion Polymer Battery - 3.7v 500mAh : ID 1578 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits Lithium Ion Polymer Battery - 3.7v 500mAh : ID 1578 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/1578-03.jpg)
Lithium Ion Polymer Battery - 3.7v 500mAh : ID 1578 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![The reasons behind lithium-ion batteries' rapid cost decline | MIT News | Massachusetts Institute of Technology The reasons behind lithium-ion batteries' rapid cost decline | MIT News | Massachusetts Institute of Technology](https://news.mit.edu/sites/default/files/images/202111/MIT-Lithium-Cost-Decline-01-press.jpg)
The reasons behind lithium-ion batteries' rapid cost decline | MIT News | Massachusetts Institute of Technology
![Amazon.com: 4 Pcs ICR 10440 Rechargeable Lithium Ion Battery,3.7v Batteries 350mAh (10 * 44mm, Shorter Than AAA Size) : Health & Household Amazon.com: 4 Pcs ICR 10440 Rechargeable Lithium Ion Battery,3.7v Batteries 350mAh (10 * 44mm, Shorter Than AAA Size) : Health & Household](https://m.media-amazon.com/images/I/71-y4dZ1ckS.jpg)
Amazon.com: 4 Pcs ICR 10440 Rechargeable Lithium Ion Battery,3.7v Batteries 350mAh (10 * 44mm, Shorter Than AAA Size) : Health & Household
![EGO Power+ 56-Volt 5 Ah Lithium Ion (li-ion) Battery in the Cordless Power Equipment Batteries & Chargers department at Lowes.com EGO Power+ 56-Volt 5 Ah Lithium Ion (li-ion) Battery in the Cordless Power Equipment Batteries & Chargers department at Lowes.com](https://mobileimages.lowes.com/productimages/ee272030-5f45-431f-83a4-7fefdb6823e9/16400864.jpg?size=pdhism)