Better safety: The adapter is equipped with a fuse and high-quality silicone copper wire to prevent excessive transient current from damaging the battery and device. You can rest assured to use it perfectly compatible: Suitable for MT BL1860 BL1850 BL1840 BL1830 BL1860B BL1850B lithium-ion batteries. Easy to install and can lock your battery well. Easy to DIY operation: The adapter is equipped with a switch to control the on or off of the battery current. At the same time, it is also equipped with a terminal block, which is convenient for you to connect the power cord of the device with the power cord of the adapter faster and better. Multi-scene use: The power wheel adapter is installed with a 12.5-inch 14-gauge wire; you can use it to upgrade your power wheels, remote control toys, robot DIY, etc. The maximum allowable current is 20A. This adapter will definitely allow you to quickly and safely upgrade your power wheels and enjoy the beauty of DIY. Easy to install and can lock your battery well. Color: Blue Material: Metal + Plastic Package Contents: 1 Set x Power Wheel Adapter Tips: The red wire is connected to the positive pole, and the black wire is connected to the negative pole. When using, please make sure that the positive and negative wires of the device correspond to the positive and negative wires of the adapter. If not used for a long time, be sure to remove the battery from the adapter Only the above package contents, other products are not included. Note: Shooting light and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3 cm.