After years of jump starting vehicles with low batteries, using cumbersome jumper cables and another vehicle, it was great to just pick up this portable unit, carry it to our pickup, and securely hook it up to the positive pole of the battery and the engine block before turning the jump starter unit on, avoiding any accidental sparking of the jump starter connections before the setup was secure. In our first try, the V6 engine of our pickup, which had been exposed to subzero temperatures and had a nearly dead battery, started after a few seconds of engaging its ignition switch. Fully recharging this portable jump starter took less than half an hour after starting the pickup.

I bought one of these at an auto-parts place, because my (almost new) battery was going dead unexpectedly. It's great for jumpstarting, no doubt about it. But it can also put air in a tire, keep your USB devices charged or powered, and even provide some 120VAC. This power pack will be darned handy in the next power outage! At the price, you can hardly afford not to have one of these. A few days after buying the one I needed, I ordered another as a gift for a friend who fishes--something LIKE this is almost a necessity, and this particular one works, is easy to use, and is a great value at the price I got from Amazon (June 2021). Can't beat it!

I'm a technician who works on building automotation, primarily industrial buildings. Often I start work on construction sites before there is power, and sometimes our controllers need programming before they have power. I'll use a portable transformer and plug it into this guy, and I'm set. I'll plug a fan into it as hvac isn't done yet, and it will keep me cool. I'll charge my laptop on it, my phones, etc. Has a huge capacity, and will generally take care of my needs. My vehicle ended up with a bad battery and often needed to be jumped before Wheels would let it be serviced. I probably jumped my vehicle 20+ times, and with the ability to turn it on and off I never had to deal with sparks (still follow the manual and jump with the frame though, battery explosions are no joke)And when my vehicle got a nail in the tire this guy got me going until I could get the tire patched. An incredibly useful tool that goes with me everywhere.

I ABSOLUTELY love this machine! I have aired up tires, boosted my friend's van, and used it to charge phones during a blackout. Easy to use, easy to charge, not heavy to carry.

After 10 months of use I have no complaints. I've used it multiple times to top off car tires in the driveway and several times to jump start vehicles and it's always come through for me. I like that I can leave it plugged in all the time and in case of a power outage I can use it to plug in my CPAP machine!

I like the ease of use, the weight, and the versatility of the product. The size is also great.

I've only used the pump so far.Pump worked fine.

I just got it today-so far I am impressed. I just plugged it in to charge. I had a smaller version of this that I bought from Walmart a few years ago. This one is twice the size! I am excited to have this available to use. Especially since we just had“the blizzard of 21”. I’m sure I will be using it to start my van when the roads clear. And with it being more powerful than my last one I am sure I can use it to run a small space heater for short periods of time in case I lose power. I had used my last one to power lamps during a summer outage before. I will give more feedback once I use it a few times.

Bought this to replace an older unit in which a gear on the air pump broke and no part can be found. It is fat, a little awkward to tote around, but does stay put when I put it in the engine bay. Have a van with a parasitic drain and had to use this to start it, it does well at this. Cable storage is good. Digital voltage display is good and useful. Wish it had an automatic stop on air pressure when filling tires, I have to kneel down to read the analog dial, and it takes a while to bring low tires up. I have not put the AC on the oscilloscope yet to examine the "modified" sine out. It looks very serious.

I've just bought my second Schumacher 1200A Power Station which I use mostly for it's compressor to pump up tires. Whole lot more convenient than going to a gas station, when a tire is very low. This will save you a lot of time for a slow leak, where you can use "fix a flat", them fill tire enough to get the tire fixed. The Jump Starter is adequate only for cars, not a heavy duty truck or other big engine vehicle (350cc or larger).The air compressor is very adequate for my large engine truck tires. When you receive it, they recommend keeping the charge connected for 36 hours, just to have it full strength. An automatic internal switch shuts off any overcharging. And re-charge it, after each use. There is a display of how full your charge. Keep it pushed back up to 100% after each use (which I've failed to do a couple times), but my first 1200A unit will still hold a charge for all twelve of my vehicle tires. It has plug-in sockets to charge your cell phone & keep your computer & TV going during power outage...