Each powers up to 25 min and refuels in 1.5 h; an indicator light glows while charging and turns off when full, so kids always know a pack is ready. 50‑MIN RUNTIME 3‑SEC SWAP LED CHARGE ALERT — Two 500 mAh USB‑C modular packs slide out in 3 sec—no screws. — ONE-TAP DEMO & LIGHT SHOW — INSTANT WOW — Hand your kids this Remote Control Stunt Car and press Demo: the car fires off a flip-and-spin routine that turns first-timers into stunt champs—no more “Mom, make it work!” pleas.