[About compatible batteries] (Batteries sold separately) for series:work with for 24v max KB624-03 KB524-03 KB424-03 KB224-03 KB124-03 Li-ion batteries. Easy to install, locks on you battery very well. [Converter Applications] for 24V battery can be used as a familiar power source. It can also be connected to 24V devices to power tools and equipment with battery power. Additionally, you can use the battery adapter to run toy cars, such as DIY toys or corded speakers. The converter can also be used to easily make battery-powered speakers. [with fuse function] This product is equipped with a fuse function that protects the circuit by melting the built-in alloy parts and opening the circuit when a current of 20A or more flows. This means that in the unlikely event of an abnormal current flow, the circuit will be automatically interrupted to protect the equipment. This product is designed for enhanced safety and ease of use. [Note 1] Do not connect the red wire to the black wire when the switch is ON. If the red and black wires are connected while the switch is ON, a short circuit (short circuit) may occur, causing damage to the product and the battery. [Caution 2] Do not open the cover except to check or replace the fuse. There is a fuse built into the product, and this fuse protects the product and battery by blowing in the event of an overcurrent. Opening the cover may cause unnecessary force to be applied to the contents of the product, which may result in malfunction or danger. Please pay attention to the above two points to safe use of the product. Color: blue Material: plastic Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Package Contents: 2* Power Wheel Battery Adapter Only the above package content, other products are not included. 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.