【Compatibility】 The Power Wheel Adapter is only compatible with 18V lithium-ion batteries, including BL1830 BL1840 BL1850 BL1860 BL1840B BL1850B BL1860B BL1820 batteries for replacement. 【Safety】 In the Power Wheel Adapter, we have added and equipped fuses and switches to increase the safety of the product. The main function of the fuse is to protect electrical equipment from overcurrent and overheating. When the current becomes abnormally high and generates heat, the fuse will blow and cut off the power to ensure the safe operation of the circuit. We provide 3 fuses for replacement. 【Easy Installation 】The Power Wheel Adapter has four screw holes, which can be conveniently fixed with screws, so you can easily mount it on the Power Wheel. (Note: The color coding of the wires is black for the negative pole and red for the positive pole.) And this fixing structure is very sturdy. Our battery adapter is equipped with a 14-gauge wire, suitable for many high-performance applications and