Details: The red wire is connected to the positive terminal of the battery and the black wire is connected to the negative terminal of the battery. Easy to install locks nicely to the battery. Adapter with 15 12 gauge wire installed Suitable for high power applications. feature: Color: Black/Yellow Battery voltage: 18V Applicable to: Boschs, Makita Dewei Product size: 95x74x33mm Product weight: 50g The package includes: 1 battery adapter (with fuse) Notice: 1. Due to the difference between different monitors the image may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to different manual measurements please allow slight size differences.