* Work for Bosch 18V Li-ion Battery. * The red wire is connected to the positive battery terminal, and the black wire is connected to the negative battery terminal. * Easy to install,locks on you battery very well. * Adapter has 14 gauge wire installed. * Suitable for high power applications. Compatible with: For Bosch 18V Lithium-Ion Battery:BAT622,BAT609,BAT618G,BAT609G,BAT618,etc. Package included: 1/2pcs * Adapter (battery not included) Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.