Variable Voltage Battery 3.3v - 4.8v w/ Charger — Extracts Academy
Amazon.com: EmazingLights CR2450 Batteries 3 Volt Lithium Coin Cell 3V Button Battery (20 Pack) : Health & Household
Energizer CR123 3V litijeva baterija - Ebatt
18650 Li-ion Battery (3.3V/1500mAh) - China 18650 Lithium Battery and 18650 Cell
It Just Got Easier to Convert Lithium-Ion Battery Voltage to 3.3V with this Efficient Single Inductor Synchronous Buck-Boost Regulator | Analog Devices
Amazon.com: Panasonic CR123A-12PK Lithium 3V Photo Lithium Battery, 0.67" Diameter x 1.36" H (17.0 mm x 34.5 mm), Black/Gold/Blue (Pack of 12) : Health & Household