The indicator on the jumper cable will show a steady green light when the battery clamps are correctly connected to the vehicle battery. If a steady red light comes on and the unit is beeping, the connection needs to be reversed.

Review: Gooloo Car Jump Starter GT3000 Turbo (vs NOCO - YuenX

Even if you plug it to the wrong one, the Gooloo’s reverse-polarity protection will prevent your battery from getting short-circuited. It will also display a “X” symbol on its screen and continually beep They’re everywhere today, but lithium-ion jump starters only first appeared in 2013. Now there are thousands of them (see our favorite portable jump starters), and what was once an expensive specialty product is affordable enough that most people should keep one in their car. They’re not only convenient, but safer than using jumper cables, as all the good ones detect reverse polarity. This prevents injuries from sparks and arcing; possible fires; and damage to a car’s battery and even electronics. In an emergency you don’t need another vehicle to get your car started, plus they almost all have flashlights and various USB ports to act as giant chargers and battery banks. Obtain the best charging performance with GaN (gallium nitride) Technology, the charger can provide 100W fast charging speed in a compact size and has a safety protection system to prevent over-current, short-circuit, over-charging, and over-heating. Heavy-Duty And Long E-marker Cable Not only can it jump start your car, it can also charge your multiple devices on the road, like smart phone, bluetooth, ipad and so on. A real portable power bank charger. BRIGHT LED EMERGENCY LIGHT

100W Wall Charger:

Turn on the jump starter, then press the Power button for 1-2 seconds to turn on the light. Cycle through the modes by briefly pushing the Power button again

GT3000 + Box – GOOLOO Bundle GT3000 + Box – GOOLOO

Beeping: Jump starter’s temperature is too low or high. Wait until the Gooloo’s temperature is between 32F – 113FThe jumper cable features a smart Over-Start Protection function. If you start the vehicle more than 4 times in 2 minutes, the jumper cable will turn on Over-Start Protection: The green and red light will start to blink and the battery clamps will have no output. When you disconnect the jumper cable plug from the jumper starter, the smart Over-Start Protection will reset. I previously mentioned how battery-operated jump starters are some of the tools I find essential for drivers, and wrote about one of my favorites, the NOCO Genius Boost. The article was prompted after having rescued a countless number of family members, coworkers, strangers, and friends during my travels. Draining a car’s battery is not difficult. All it took, for instance, was for my little son to turn on the 2nd-row ceiling light right before we took him out of his car seat during the daytime. It stayed on for days without our knowledge. In another example, I waited in the car for about 45 minutes while my wife went shopping at the supermarket. I was listening to the radio and had the fan on. The battery died by the time she returned. Oops! This unit is perfect to jump start a dead car in ice and snow when the battery is undercharging, the car stalls while driving, or in emergencies, for medical rescue, or on road trips. Included (female) cigarette port cable surprised me: Powered my car freezer (although it would theoretically only last up 1-3 hours) We're keeping it in our trunk organizer, and we'll update this post the next time we use it, but so far it's proven to be an affordable, effective jump starter for everyday use.

GT3000 + 100W Wall Charger + Box – GOOLOO Luxury Set | GT3000 + 100W Wall Charger + Box – GOOLOO

To determine how long this battery can be used for to power a given device, use the following equation:Can hold charge for up to 2 years before completely drained, although you should charge it every 3-6 months to prolong its lifetime Reverse-polarity protection: Having the clamps touch each other does nothing. They are quite fool-proof (except when “Boost” mode is activated) Intelligent output. Compatible with iPad 10.2-inch/; iPad mini 8.3-inch/; iPad Pro 12.9-inch 4th / 3rd / 2nd / 1st generation; iPad Pro 11-inch 2nd / 1st generation; iPad Pro 10.5-inch; iPad Air 4th / 3rd generation; iPad 8th / 7th generation; iPad mini 5th generation, Apple Watch，etc. It can automatically identify adapt power of different devices, fast charging while proving safety. More Power. Less Heat. The display screen on the GP200 is incredibly helpful. It shows you the exact amount of charge remaining, first of all, so there’s no guesswork in the timing. In addition, it displays warnings if you switch the clamps or have an otherwise faulty connection. Here are the errors that may show up on the screen. They are also printed on the bottom of the Gooloo.