Lithium Ion Battery Pack - 3.7V 6600mAh : ID 353 : Adafruit Industries, Unique & fun DIY electronics and kits
844203-850, HP 3610mAh, Li-Ion, 41Wh, 3-cell, BI03041XL-PR | EET
3 Cell Li-ion Packs
3 cell 3.3A lithium ion battery charger for 10.8V li-ion battery packs, charges at 12.6V, compact design and removable AC cord, lithium polymer charger
GREAT IT 1PCS 3S 25A lipo lithium Polymer BMS/PCM/PCB battery protection board for 3 Packs 18650 Li-ion Battery Cell - AliExpress
What Are Lithium-Ion Batteries? | UL Research Institutes
Dell 3-cell 56 Wh Lithium Ion Replacement Battery for Select Laptops | Dell USA
Why do lithium batteries use S (2S, 3S etc) to mean 'cells'? What does the S actually stand for? - Quora