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
3.7V 2500mAh 9.25Wh 3 Wires Thermistor Lithium Polymer LiPo Battery 605068 For Car Camera E-Book PDA MID ipod Portable Tablet PC - AliExpress
Samsung 25R INR 18650 2500mAh 3.7V Unprotected High-Drain 20A Lithium Ion (Li-ion) Flat Top Battery - Bulk
Amazon.com: 3.7V 2500mAh 14500 Rechargeable Batteries for Flashlights Toy Cars (4 Pack) : Health & Household
Amazon.com: Adafruit 328 Battery, Lithium Ion Polymer, 3.7V, 2500mAh, 2" x 2.55" x 0.30" Size