<p>The red wire is connected to the positive battery terminal, and the black wire is connected to the negative battery terminal.</p> <p>Easy to install,locks on you battery very well.</p> <p>The products are only used for flexible conversion between one tool and another lithium battery, and do not involve any other !</p> <p>The products are only converter, not charger, not battery, not machine, also can not recharge battery by it.</p> <p>Note:</p> <p>Due to different production batches, labeling is random and does not accept designation and does not affect use.</p> <p>Installation guide not included, we strongly recommend you professional installation.</p> <p>Please check as much as possible to make sure the item is what you need.</p> <p>Tips:The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use.</p> <p>Applicable for 18V lithium-ion batteries: 48-11-1880, 48-11-1835, 48-11-1865, 48-11-1890, 48-11-1860, 48-11-1850, 48-11-1812, 48-11-1840, 48-11-1820, 48-11-1815, 48-11-1828 etc.</p> <p>Color:Red</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x Adapter(No Battery)</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>