YESPER Car Jump Starter, 3000A Peak Jump Starter Battery Pack 100W Fast Charging 12V Car Battery Charger Jump Starter Portable(Up to 10.0L Gas or 8.0L Diesel Engine, 60X) Jumper Box (B-ARMOR)

This sat in the trunk of my wife’s car for a few weeks in -10 weather before we used it. The car’s battery was completely dead and well below 0° making it a tough start. This jump starter worked great.It jumped a v6 no problem.we’ve used it about 10 times during the cold snap and it’s still above 80% charge. I highly recommend this jump starter.I’d definitely buy another one to keep In my own vehicle.

Excellent battery charger! I decided to upgrade my excellent NexPow charger (by donating to my Father).I watched several YouTube videos stating the best charger and the best value is clearly the Yesper. It has: 3,000 amp charging capacity; digital screen with % battery life; and a compartment with important connections covered. Why not 5 stars? It did not come with a bag? I almost did not purchase for this reason. But fortunately had another bag to serve this purpose. It’s a very well constructed product!

These things are nothing short of amazing. I have one in each vehicle. My Corvette battery died while I was in a drive thru and this jumped it off right away. Also, our temps in Illinois just dropped to -9 and I knew the battery in my Lexus was on its last leg. My car wouldn't start. The battery was completely dead, I put this on it and it jumped my car right away after sitting in the trunk for months. This Is Truly An Amazing Product! I very seldom write reviews but everyone should have one of these. Thanks Yesper!

My husband bought me one of these when my truck was having problems starting and the usual cables always scared me and with this charging box I can do it all by myself and I'm not afraid then I bought one for my son for Christmas and he was so thrilled!! We are currently in a ice storm with no power and we are able to keep our phones charged using this also! You NEED this in your home!

Fail, the unit refuses to charge in the car. It blew two-20amp fuses and one-25amp fuse. Both ends of the supplied car charge cord got very warm, at that point, I gave up and grew afraid to try again. I requested a return and refund. UPS came and did the pickup and I am now looking for a different, better, less scared of jump box.