1. The LOKITHOR J401 heavy duty jump starter for semi truck is an excellent best car battery jump starter that is compatible with a wide range of vehicles, including cars, motorcycles, boats, RVs, ATVs, SUVs, vans, tractors, and mowers.

 

2. Fast charging with 1.25 hours for full recharge and 3 minutes for car start. 100W two-way fast charging of J401 12v battery booster pack that can start your car in just 3 minutes or fully recharge devices like phones, tablets, and laptops in just 1.25 hours.

 

3. J401 hand held car battery jumper is a rugged build enclosure that is rated IP65 water-resistant and 94V0 flame retardant, making it rain-resistant and dust-tight, as well as drop-resistant. The quick charge jump starter can withstand extreme environments from -4°F to 140°F, ensuring that you can jump-start your vehicle under different conditions.

 

4. The J401 fast charge jump starter can detect the voltage of the car battery booster in real time and sound an alarm for abnormal conditions. The automatic jump starter is built with the latest battery management system, including short-circuit protection, over-current protection, reverse connection protection, over-heat protection, over-time protection, spark-proof technology, and clip falling-off protection.