What country is the product made in? 14 September 2021 08:20 Updated Answer: The product is designed in USA and made in China. Related articles Can customers ship the jump starter overseas by airplane? Will fast charging (65W charging) harm the battery lifespan? Can this be used to run a DC motor like a winch? Is this unit safe to work on AGM batteries? What is the working mechanism of the jump starter? Comments 1 comment Sort by Date Votes Ron Dextradeur 25 September 2021 19:50 I just bought your HULKMAN 8.5. I tried to fully charge my new purchase that I received 80% charged but the device would shut off after a 1% charge. I changed outlets but still could not charge this device more than 0 - 1% before it would shut off. Based on your website's T-shooting advice I plugged it into my phone charger. I had no trouble charging it using my phone charger. Obviously, the charger sent with your device is defective. How can I have a replacement sent to me? 0 Please sign in to leave a comment.