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. Also note that if you live in an area where it’s cold most of the year, like Alaska or North Dakota or any other place where it is mostly winter year around, you want to look into cold-cranking amps of any jump starter you want to buy. These are the other jump starters I tested to see if they are up to the manufacturer’s claims. You can read my detailed review down below to find out if a specific jump starter meets your needs. NEXPOW Jump Starter: 1000A

AVAPOW also claims that their jump starter does well in cold temperatures. To test it, I put it in the freezer for 30 minutes. Never do this to your jump starter, as doing this can damage it. I did it, so you don’t have to try this and know that this jump starter will work in the cold. In my opinion, AVAPOW 4000A is an excellent jump-starter, but it has its shortcomings. I have been testing this jump starter for a few months now, and it has been working great.This jump starter from AVAPOW has solidly built clamps that apply decent pressure to the battery terminals. In my testing, the clamps did not bend or twist when connected to the battery. It comes with all the useful accessories. This includes a 12V DC wall charger, a car cigarette lighter charger, a micro-USB cable, 12V cigarette lighter accessory adapter, and a not-so-hardshell carrying case.

There were some poor-quality plastic clamps, though, and three clamp sets have already broken in under 9 months. The broken clamps are from:

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I went on camping and took this jump starter with me. There I charged my iPhone two times, used it as a camping light, and jump-started my friend’s car. The battery came down to 25 percent during my 3-day trip. Editorial Note: This content was researched and produced by Motor1.com‘s expert review team. Links in this article may result in us earning a commission but do not impact our advice or recommendations. Learn More Other than jump-starting, this little gadget can also charge your smartphone or other compatible devices at full 60 watts through its USB-C port. The battery capacity is not there as this jump starter only has a 32 Wh battery, but it can charge your device super-fast. It has the tedious USB-A charge-out port as well. This jump starter charges through USB-c with 15 watts but the charging adapter is not included in the box. It comes with a nice carrying case. Most people have a USB charger already so I think it is not a problem. This jump starter also has protection for short circuits and reverse polarity. And, the flashlight is bright. It drains the battery fast.

Apart from the usual safety features and excellent build quality, the main selling point for me (apart from its raw power) is the power delivery features through its USB-C port. In my testing, I found that this flashlight, I mean, jump starter, is best for gasoline engines (with weak batteries) that are up to 5.0-liter. The battery clamps on this jump starter are very similar to Nexpow 1000A with strong clamping force, so you don’t have to worry about any loose connections or sparks on the battery terminal.You can recharge the Gooloo by plugging it into a USB port. The device takes about five hours to charge, but the full charge will last up to three months. It has reverse polarity protection, short-circuit protection, and other safety features. There is an LED light on the jumper cables for each warning.