Battery holder: Li-Ion 18650 Battery Holder (1S3P) With 2.6" long 20AWG & PCB
3.6V 18650 panasonic bd ncr18650bd 1s3p battery pack with pcb (4-8a) with lead wires - QueenBattery
1S3P Battery Pack with LG MJ1 Cells, 10.5Ah, 30A, 3.6V, Line Shape, Customizable - 18650 Battery Pack - Lithium Ion Battery Pack - Voltaplex
New Protected 3.7V 9000mAh 18650 Li ion Battery pack Speaker Fishing lights Monitor 1S3P Portable Rechargeable Battery+ 2P Plug|Battery Packs| - AliExpress
Ansmann 1S3P Battery pack 3x 18650 Cable Li-ion 3.7 V 7800 mAh | Conrad.com
Japan 18650 1S3P 3.7V 7800mAh Li ion battery pack+ DC 4.2V 1.5A Smart Charger EU|battery travel charger|charger batterie pc portablebattery dell latitude d520 - AliExpress