Features: Battery Case Replacement Set for BL1830: Holds 10x18650 cells(no battery) with builts in protective against overcharge, over discharge, and overheating for safe power tool operations. Precisions engineered plastic housing fully compatibles with original model, feature easy installation design to repair broken circuit boards or damaged battery enclosures. Ideal for 18V power tool owners, DIYer enthusiasts, and technicians seek reliable battery pack restorations for drills, sawing, and grinders. Perfect for workshop repairs or field maintenance where 18650 battery replacements is required for continuous power tool performances. Streamlines your tool maintenance with this battery case solution, ensuring extended lifespans and safety compliance for BL1830 compatibles devices. Specifications: Material: Plastic Color: As pictures shown. Size: Suitable for battery size: 84x119x65mm/3.30x4.68x2.55in Optional Styles: A Battery Case with PCB Board Kit, B PCB Board Only Package Includes: StylesA: 1 set Battery Case with PCB Board Kit StylesB: 1pc PCB Board Only note: Please allow 1-3cm error due to manual measurement. please make sures you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color the item.