BL1830 Plastic Case for MAKITA 18V Li-ion Battery - Compatible with 10 x 18650 Cells This is a replacement battery case shell only, no battery cells included. It can hold up to 10 pieces of 18650 li-ion batteries and features an LED battery status indicator. This product is intended for DIY use as a semi-finished item and does not include internal battery components. Important Notice: 1. The package contains no batteries. 2. If you require batteries, please do not purchase this item. 3. This product requires professional knowledge and experience in battery assembly. 4. Specialized tools are required for installation. Do not purchase if you lack the necessary tools or expertise. 5. Labels may vary slightly by production batch; images shown are for reference only. Color: Black Material: ABS Package Contents: 1 x Li-ion Battery Case Note: Other items not included. Due to lighting and display differences, actual color may vary slightly from the image. Measurement tolerance: +/- 1-3 cm.