SaferProducts incident

Failure type

Battery failure

Incident narrative

SaferProducts.gov consumer incident report 20260816-00071-2147312344. Severity: Injury, No First Aid or Medical Attention Received. Product: Mooncool TK-PRO TK-PRO (Mooncool TK-PRO ELECTRIC TRICYCLE). Incident: [PRODUCT INFORMATION] Brand: Mooncool. Model: TK-PRO Electric Tricycle (E-Trike). Purchase Source: Amazon.com. Amazon Order Number: [REDACTED]. Purchase Date: August 16, 2025. [INCIDENT DESCRIPTION AND SAFETY HAZARD] I am reporting a severe safety event involving sudden full-power acceleration and a non-compliant lithium-ion battery pack. The vehicle was recently assembled following a medical release from post-spinal fusion surgery weight restrictions. The incident occurred on my front porch, which is roughly 5.5 feet deep and features a built-in transition ramp designed to roll the trike safely down to the pavement. I had the trike positioned properly toward the ramp. As I was attempting to mount the vehicle and place my feet on the pedals to ride down, the vehicle suddenly and violently accelerated at full power. I do not remember touching the throttle, though I cannot rule out whether it was an internal electrical malfunction or an accidental brush against the throttle control during the mounting process. Regardless of the root trigger, the vehicle immediately lunged forward with unchecked, maximum torque. The machine caught my shirt on the handlebars, tearing the fabric, and forcefully impacted a heavy-duty stainless steel handrail running alongside the porch. The kinetic force generated by the vehicle was severe enough to rip half of the stainless steel railing structural support directly out of the wooden deck flooring, while twisting and bending the remaining steel framework. Notably, the e-trike frame itself showed no visible damage, as the vast majority of the high