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This portable jump starter delivers powerful 4000A peak current to quickly start all 12V vehicles including gas engines and diesel engines up to 10.0L. It features a built-in smart safety system with multiple protections to ensure safe operation, and it also works as a portable power bank with fast charging for phones, tablets, and other devices. The compact and durable design makes it suitable for emergency use, travel, and everyday driving needs. | Mostool | | 4000A Portable Car Jump Starter with Smart HD Display and 30W PD Power Bank | Best Buy