General description Designed for M18 Li-Ion batteries, this plastic case features a charging protection circuit board suitable for 18V batteries, including models 48-11-1815 with capacities of 3Ah, 4Ah, and 5Ah. The product is rigorously tested for safety and quality, ensuring high performance and reliability. Technical specifications Color: Black Material: Metal + PCB Allowed measurement error: +/- 1-3cm Compatibility and accessories Compatible with M18 Li-Ion batteries (3Ah, 4Ah, 5Ah) Packing list: 1 x Plastic Case, 1 x Spring, 1 x Circuit Board (PCB) Usage Use only with compatible batteries. Always use proper eye and respiratory protection during handling. Other information Warning: Do not disassemble or insert in charger if the battery is cracked or damaged. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual product.