Feature Highlights: 1. 10 Built-in INR18650 Battery Cells – DIY your machine’s battery capacity with reliable, high-quality cells designed for professional use. 2. Enhanced Compatibility – Works seamlessly with a wide range of devices and is ideal for repairing or assembling custom battery packs. 3. Advanced Protection Board – Features single-cell protection detection to keep every cell balanced, preventing over-charge and over-discharge. 4. Smart & Safe Design – Built-in memory chip and CPU automatically optimize charging, while safeguards against incorrect voltage, short circuits, and overheating ensure safety. 5. Durable & User-Friendly – Made with a high-quality shockproof plastic case, plus an LED indicator to check remaining power at a glance. Product Details: This upgraded battery case is built for performance and safety. It supports high-quality INR18650 30A discharge cells, offering up to 2.3 times longer run time per charge compared to a standard 3.0Ah battery. The intelligent circuit board balances each cell and includes multiple protections for worry-free use. Easy to install, it’s perfect for rebuilding battery packs for tools and equipment. Specifications: - Color: Black - Material: Plastic - Compatibility: Replacement for codes 194204-5, 194205-3, 194309-1, 194230-4, BL1815, BL1830, BL1840, BL1850, BL1860, LXT400, and similar 18V devices. - Package Includes: 3 sets of BL1860 battery cases. Only the items listed above are included. Product color may vary slightly due to lighting and screen differences. Dimensions may have a tolerance of +/- 1–3 cm.