four green HAKADI 18650 lithium-ion rechargeable batteries

• Brand & Size: Each green cylindrical cell is labeled HAKADI and 18650, which indicates a standard size of 18mm in diameter and 65mm in length. • Power Ratings: The printed text specifies a nominal voltage of 3.6V and an energy rating of 9.0Wh (which equals a capacity of 2500mAh). • Serial Numbers: Each battery features a barcode and a unique sequential tracking number (472190, 472191, 472192, and 472193) alongside the batch code UF4E091EK. • Polarity & Terminals: Clear + (positive) and - (negative) symbols are printed near the flat-top ends to show battery orientation. • Storage: The cells are neatly arranged in an open, four-slot translucent plastic case designed to prevent accidental short circuits during storage or transport.