1. Can Built-in 10Pcs INR18650 Battery cells .2. DIY The capacity for your Machine battery. High for professional use3. High compatibility with old device and more durable. Help to repair and batteries pack4. Upgraded balance detection function safe and durable5. the latest circuit board, multiple protection. With LED indicatorType: Battery Storage BoxReplacement Battery Codes: BL1830 BL1840 BL1860 BL1850 LXT400 .Suitable Power Tools Models: for 18V - Cordless Powercolour:BlackMaterial:plasticPackage Contents:1 x Battery shell casing set(Some accessories are random, you cannot designated accessories)Only the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.