Lithium Ion Battery - 110mAh - PRT-13853 - SparkFun Electronics
Buy BLN-1 Lithium Ion Rechargeable Battery From OM SYSTEM USA
Amazon.com: Rechargeable 14250 Battery and Charger,FITINOCH 1/2 AA Lithium Ion Batteries Can Replace 3.6 Volt LS 14250,ER14250,CR14250 Disposable Battery for Laser(6 Pack) : Health & Household
Polymer Li-ion Battery : 11.1V 5000mAh (55.5Wh) with PCM
Lithium Ion Cylindrical Battery - 3.7v 2200mAh : ID 1781 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Streamlight SL-B50 Battery Pack With USB-C Charge Port