This is a discharger used for voltage adjustment of Mini 4WD batteries. It functions as a voltage checker when the switch is not pressed, and starts discharging when the switch is pressed. This discharger is designed for ease of use in races, prioritizing easy battery removal and fast discharge speed. It allows for adjustment in 0.01V increments, making it suitable for races where speed adjustment and reproducibility are required. It's a simple discharger that discharges only while the switch is pressed. The discharge current is approximately 3A at 3.0V. (The voltage drops when discharging, so the voltage displayed on the voltmeter during discharge is almost the same as the discharge current.) The voltmeter can be calibrated through the hole on the back of the main unit. Adjust it with a size 1 Phillips screwdriver through the hole marked "ADJ" (the same screwdriver used for Mini 4WD is OK). Turning it clockwise increases the displayed voltage, and turning it counterclockwise decreases it. Please adjust it to match your charger, etc. ※ Because it is made for voltage adjustment in races, it is not suitable for long-term discharge such as for refreshing batteries. ※ Neo Champ batteries are not included. ※ Due to the specifications of the voltmeter, it cannot display below 2.4V. Please understand. ※ Although we have operated and tested prototypes before listing, this product is a personal creation. We cannot guarantee the same level of safety and reliability as manufactured industrial products. We are not responsible for any damages related to the use of this product. Thank you for your understanding. ※ Due to being a 3D printed product, there may be minor scratches or layer lines from the finishing process. Search Keywords Mini 4WD Discharger Battery Discharger Neo Champ Battery Discharger Jig Saito Store