Lezyne Li-Ion Double 18650 battery 4800 MAH with plug - Battery | Lezyne Store
3.6V 3350mAh 1S1P 18650 Cylindrical Li-Ion Battery Pack with options for connectors, housings, contacts or solder tables, now IEC621333 certified, Model BL3500C1865001S1P****** (1INR19/66) | GlobTek