AsperX3000A Jump Starter for Car Battery, 12V Portable Jump Box with LED Light & Smart Jumper Cables, BMS for Up to 10.0L Gas or 8.0L Diesel Engines

Very easy to use, small, lightweight and holds a charge for months after initial charge. I definitely recommend this charger!

I'm always leery of made in china junk. But with the extra 20% coupon and the 74% 5 star rating, I took a chance. There are other similar china made units that had 1000A & 2000A peak current ratings, this has 3000, another reason I took chance on this one. I had a dead car sitting for 2 months. Even electric locks would not move. I attached unit, nothing. Then I pushed the Boost button (on part that cables come out of). It triggered my car alarm, after composing myself, I started the car right up. I only moved car off the driveway. Next day car was dead again, or still dead. I used the unit second time, same results. This time drove the car long enough to charge. Battery has 37Wh rating. If I do my math correctly, for a 5V device that's about 7Ah, or 7000mAh, which is a pretty good backup battery for phone type devices. If it doesn't last I'll update the review. Some 1 stars said company didn't honor their 18 month warrantee, I hope that's not true. ---- 4/23/25 I have 2 extra cars not getting driven enough. Have had to use this 12 times in past few months. It's been a lifesaver with the street sweeper bearing down on me. After 6 uses with the high boost button, the blue bar charge status went from 4 to 2 bars. Price dropped to 40 bucks, I'm here buying Christmas presents, so figured I'd update review. Flashlight has blinking options which is nice safety feature if stuck on roadside at night.

I already own the Asper 4500. I like this one better. It is more portable but just as capable. So far I have jump started 7 vehicles and still have 45% battery life. Since I bought this I have bought 2 more and handed them out as gifts. Easy to use, great quality, and great value. I am happy with my purchase and highly recommend.

I wanted to give it a 5 star but the only negative is the cords a little shorter than I’d like. Other than that it’s so easy to use and I was so nervous. Plug in the cable cord turn it on and bam. So easy and convenient. I am so comfortable using this portable. Now I don’t have to call triple A for a jump! If you’re a woman, get a portable charger you will not be disappointed. Car starts immediately upon hook up at least in my experience!

Love it inmso many ways

easy to use problem free, very pleased !

Excellent

I have only used once but didnt seem to have the power to start a 6.6 duramax with 2 bad batteries. Maybe when I use next result will b different or I will learn how to use it. It's seems pretty small to pack much punch.