Buture br500 vs buture br300 the br500 car battery jumper epitomizes resilience and efficiency, making it an indispensable companion for any roadside situation. This device not only serves as a portable car battery jumper but also excels as a powerful battery starter, delivering a robust peak current of 2000a. This impressive capability allows for jump starting a dead battery in seconds, catering to a wide range of 12v vehicles from small cars to large suvs, trucks, and vans. Specifically, the br500 supports engines up to 8.0L gasoline or 6.5L diesel, significantly extending beyond the br300's capacity for jumping car batteries in vehicles up to 7.0L gasoline or 5.5L diesel. In addition to its primary function as a car battery jumper, the br500 distinguishes itself with a substantial 16800mah capacity, surpassing the br300. This portable lithium-ion battery jumper not only revives your vehicle but also acts as a crucial power bank with two usb ports, enabling the rapid charging of multiple devices. Whether you're dealing with a dead or died battery or need an emergency charge for your electronic devices, the br500 battery jumper is designed to deliver comprehensive support in a sleek, user-friendly package. Powerful car battery jumper the br500, with its 2000 amps peak current, can effortlessly jump start your 12v vehicle, including cars, suvs, trucks, or vans up to 8.0L gas or 6.5L diesel engines in seconds. It's ideal for jumping a car battery quickly and efficiently. P...