OXILAMJump Starter, 4000A Peak Car Battery Jumper Starter Portable, Up to 10L Gas and 8L Diesel Engines, 12V Jumper Cables with Battery Pack, Power Bank, 600 LM LED Flashlight, OrangeClimatePartner certified

Very straightforward. The battery came halfway charged, I charged it for about 3 hours, till it was fully charged. I measured the car battery at 2.96V (2.4L SUV, 450 amp battery), connected the jump starter and turned it on, waited for the green light to be solid, and then I heard a few clicks, which is normal. Turned the car key, to my surprise, it started right up. I really didn't think it would work that easily. After I disconnected it all 4 charge indicator lights still light up, but It can be from 75% - 100% charge, still great.I tested the flashlight with my light meter app at 1 foot away, and it comes at about 700 LUX which does come close to the 600 Lumen it advertises (not a comprehensive test, but it is bright). The pack alone weighs about 0.61lb or 278g, if you're interested. And 26.64Wh of capacity is labeled on the back. The cable length is about right to charge the car battery, good prongs, easy to carry as it comes with a black bag, and it really is lightweight, and built solid as far as I can tell, I will come back and update this if it fails.

On a Full charge, this unit can handle 8 Jump starts. My battery was super dead and I could not afford a $200 Battery so I got this. The OXILAM Jumper started my car instantly after turning the key and its small and comes with a carry bag so you can put it away in the Center Console or Glove Compartment easily. 10/10 Definitely recommend.

Just used it for the first time and it worked. I was actually surprised at how small it is. My other one is like 4xs bigger and apparently this one has 4k amps vs my other one is only 1k. Once you use it make sure to charge it again soon as the single jump will eat up about 50% of the battery and it may not work for a second jump later if you need that. Also make sure of your battery is extra dead to leave it charging for a few minutes before you crank the engine. In some cases I've had to wait 20 min before the battery could be revived but usually it works right away.

It works great I keep one in my boat and in my big block truck. The battery stays charged and with the cheap price I buy them for friends and family to keep in their cars.

Reason for 4 stars not 5. Does not come with charger. It comes with cord. Fortunately I had one laying around.

Easy to use...do the job good!!

yes very good product and a convenient size for carrying.

Was a great price, all seems to work fine. No complaints!