Lithium Ion Battery - 18650 Cell (2600mAh, Solder Tab) - PRT-13189 - SparkFun Electronics

This is the same 18650 Lithium Ion Cell that you know and love, but now includes pre-attached solder tabs! These round high capacity cells have been mainly

UltraFire 2600mAh 3.7V 18650 Rechargeable BRC Lithium Battery With Pro

Battery Holder - 18650 (PTH) - PRT-13113 - SparkFun Electronics

LiPo Products - SparkFun Electronics

Polymer Lithium Ion Battery - 18650 Cell (2600mAh, Solder Tab) - Elmwood Electronics

DLG NCM18650-260 Grade A 7.8A 18650 Flat Top 2600mAh Battery – Liion Wholesale Batteries

CS-MICROBYTE-01 Crowd Supply

18650 3.7 V Lithium-Ion Battery Rechargeable (Secondary) 2.2Ah

USE-18650-2200MAH

Battery - SparkFun Electronics

A great inexpensive 18650 battery for battery packs, The DLG NCM18650-260 DLG battery tests at a minimum of 2500mAh and is very inexpensive but is

DLG NCM18650-260 Grade A 7.8A 18650 Flat Top 2600mAh Battery

Manufacturer UL/PSE/CB/Kc/MSDS/Un38.3 Rechargeable 3.7V 2600mAh Li-ion 18650 Battery with PCM Wires Connector - China 18650 Lithium Ion Battery, Lithium Ion Battery

Battery - SparkFun Electronics