A:AnswerThese devices are not typically measured for CCA as they are not replacement car batteries and intended as emergency starters. With that in mind there are variables that can effect performance. With this one I would say you can expect about 3 attempts at starting a standard vehicle. If you have a big truck or car you might want to look into a product with more power.
As you can tell, portable jump starters have a variety of specifications that could make it tricky to determine the right one for your vehicle. What you need to know is that jump starter power is typically noted in cold cranking amps (CCA) or peak amps (PA). To measure CCA, a fully charged battery is put in a cold environment—0°F—and determining how many amps it discharges for 30 seconds. This value explains what to expect from a battery in the worst starting conditions.
It’s true that the more amps a jump starter offers, the more powerful it is. But does that mean you should just purchase the most powerful product? Not necessarily.
What’s important is determining just how much power you need for your vehicle. Compact cars or even small sedans can be jump started with as little as 150 CCA, while full-size trucks and SUVs need around 450 CCA. But there are other things to consider, such as engine size and how old the vehicle is. Larger engines and older vehicles will require more amps to jump start, as will diesels which have high compression, which is why you will typically see powerful jump starters advertised as being capable of starting engines as large as 8.0 liters. Generally however, 400-500 CCA is adequate to start most vehicles. The colder the temperature, the more CCA you’ll need, too.
A:Answer36.63 Wh (36630 mWh), or 9900 mAh (9.9 Ah). USB (A or C) ports should output 5V, car battery booster at tail end (red and black clamps) should boost 12V car battery.
A:Answer9.9 amp-hour. In theory 9.9 hours at 1 amp or 1 hour at 9.9 amp or as long as multiplying these two gives 9.9. Boosting car battery takes very high amp at short time.
