Car Jump Starter, 4000A Peak Portable Jump Box, 12V Battery Charger for Truck up to 10L Diesel, Motorcycle, RV, Boat, Dual USB Power Bank, LED Light, Car Accessories for Roadside Emergency Kit

Product working perfect 👌

I have a buddy had this killer device charger he took with him on trips simply to have a large capacity for keeping his phone, laptop and things full. He spent well over $100 for it. I thought it was great. Here's the thing, it can’t jump start his car too! Here is my point, for well over 25% less cost, this device does the same thing, even has a larger capacity then his... AND... in a pinch happens to be able to both jump start my truck, but also act as a long lasting emergency flashlight. Why would anyone buy one of those storage bank device chargers when these things exist? 21000mah.. this will charge any device well over 5 times from zero to full. this is a must have! It works great, has two USb inputs for charging multiple devices at the same time, built well, takes only a few hours to charge... and keeps its charge for a VERY LONG time. don't hesitate. nab it. Great gift too!

First, the price is excellent. Second, it shipped right away. Third, it was packaged well. Fourth, the actual product packaging (carrying case, cables, etc.) is very good. Fifth—and very importantly—it came fully charged! That was a vital feature, because I immediately needed it to started my grandson’s car. He had left the car with me during his summer college break, and the battery died unexpectedly. The car (a 2018 Honda Civic) was parked in a place where no other vehicle could come near it for a jump start. Right out of the box, this handy little unit started my grandson’s car 3 times in 2 days. So I was able to start the car, back it out of its tight spot and drive straight to AutoZone for a new battery. Easy-peezy! I’m delighted with everything about this handy charger—including the orange color (which I love)! You can spend more … but why would you? Highly recommended.

I purchased this in November 2022 after my (then) 2.5 year old Subaru battery died due to the key fob being left in the vehicle for a little over 24hrs with temps in the teens and the battery (apparently) being weak already. The jumpstarter worked the first time without a flaw. I used it about a year later for my fiancé’s old car when it’s battery also went bad, and again, it worked like a champ. I use it to charge my phone until it drains completely then recharge it every once in a while before storing it again. I needed it again today, but despite the indicator lights showing a full charge, it gave enough juice to halfway turn over the vehicle but immediately died. I am going to recharge it completely overnight and try again. Either way, this thing has helped me out of several situations and definitely worth the ~$40 (don’t think it was even that much back then). I’ll update again once I see if it holds a charge.

By far the most power battery pack as well as slim size. Used in scooter so not sure how it perform on jumping start but fits inside the scooter perfectly.

I've had this for over a year now and have used it dozens of times. However it has only worked once or twice. If your car wont crank it's useless, if your car is cranking but not fast enough to start it might just get you going but never rely on one of these, always carry jump leads as well. The problem with these is they only put out 12 volts when freshly charged, so if your battery is say 11 volts, they wont increase the voltage or charge your battery, they might just give you a few more amps to get you going if you left your lights on for 15 minutes while at the grocery store but will do nothing if your battery is dead in a no crank situation. How they claim to start a semi truck beats me as mine wont even start my Honda! If you like to get out there camping etc, where a jump is not an option invest in a professional lead acid battery starter or just carry a spare car battery. These Lithium packs are just an expensive gimmick.