Safety is a top priority, and the BUTURE Super Capacitor Jump Starter delivers on that front as well. Its battery-free design eliminates the risk of heat, rupture, or explosion due to pre-charging. With its long lifespan of at least 10 years, you can rely on this jump starter for years to come. Table of contents

At the heart of the BUTURE Super Capacitor Jump Starter lies its advanced super capacitor technology. Unlike traditional battery-based jump starters, this innovative device utilizes super capacitors to store and discharge electrical energy efficiently. We wheeled the ice-cold Eclipse into the Car and Driver garage and got to work. The car's battery was so shot that, during testing, we watched its juice discharge between each test with our voltmeter. This was very handy—we didn't have to discharge the battery manually after each jump. Once the battery discharged fully, we hooked up each unit and tried them out. This jump starter needs to see at least 6+ volts on the battery to jump-start the vehicle. I tested this jump starter on a “known weak battery” and it jump-started it just fine. Jump starter is a tool and like all good tools, it should do its job every-time you need it and last a long time. The jump-starter can also be charged using this same 60 watts power delivery standard through USB-C. In my testing, this jump starter only took about 42 minutes to finish charging when using my Macbook charger.Beyond its core function, the BUTURE Jump Starter also includes a 4-in-1 LED flashlight. The flashlight, offering modes like Lighting, SOS, Strobe, and Warning, proves valuable during emergencies or nighttime use. The flashlight on this jump starter is bright and comes handy if you are jump-starting in the dark. It comes with smart jumper cables, USB-C cable, and a carrying case. While on the other hand, some jump starters like Clore Automotive, Weego, and HULKMAN beeped to alert the user. Weego 22s’s beeping was less noticeable (near a busy road) among all other jump starters. I honestly think they went a little bit too far with their claims about a diesel engine. With 1000 peak cranking amps, you can only start a diesel engine that is 3.5ish-liter. It also has a manual override mode, which you can engage by pressing the power and light buttons together for 3 seconds. This mode is necessary if you want to jump-start vehicles with batteries of less than 8 volts.

When it comes to facing unexpected car battery failures, having a reliable and efficient jump starter on hand can make all the difference. The device's compact and light structure is another selling point. So small that it snugly fits in the glove box, the BUTURE Jump Starter can be conveniently stored without creating any clutter. If the portable jump starter is unable to sustain high amperage for 30 seconds to meet the standards of CA and CCA, the sustained amperage output is called "Starting Amps" or something similar.This jump starter also has protection for short circuits and reverse polarity. And, the flashlight is bright. It drains the battery fast. Some plastic clamps have a metal hinge pin holding the two sides of a clamp and they seem more durable and don’t twist or flex as much as the ones made of only plastic do.

In my real-world testing (on a vehicle with a weak battery), this jump starter was able to jump-start a 4.6L V8 gasoline engine just fine. I also tested this jump-started with a bigger 5.7L gasoline engine, and it took a couple of tries but fired right up. I did not think this jump starter would have any trouble starting your vehicle with a weak battery. Furious Start】Connect and start instantly. With boosted 2000A peak, this portable battery jump starter can start 12V dead vehicles rated 8.0L Gas/8.0L Diesel engines easily in Winter.This jump starter is built solid and has a nice weight to it. 4 LEDs indicate the remaining charge on the jump starter. Clamps on this unit are made from plastic. In my testing, the clamps proved to be stronger than I expected.