Features： 1、APPLICABLE BATTERY: The battery adapter is suitable for converting for 18v BL series lithium battery to for Stanley 18v, 20v and for Craftsman 18v, 20v V20 series lithium battery tools. 2、ABS MATERIAL: Made of ABS material, the battery adapter is strong and sturdy, wear resistant and scratch resistant, ensures a long life span. 3、TIGHT FIT: The adapter is carefully crafted in accordance with the size of the battery, and the adapter will not fall off and shake during use, safe and reliable. 4、LIGHTWEIGHT: This battery converter is small in size and light in weight, easy to install and carry, convenient to use. 5、IDEAL REPLACEMENT: This conversion rate battery adapter is an ideal replacement for the old and damaged parts for better power tool performance! Specification： Item Type: Battery Adapter Material: ABS Adapter Top: Suitable for Stanley 18v, 20v and for Craftsman 18v, 20v V20 series lithium battery power tools. Adapter Bottom: Compatible with for BL series 18V lithium ion battery. For BL1815 BL1820 BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860 BL1860B, 18V lithium battery. Package List： 1 x Battery Adapter