Purchased to power atlas rapid battery charger. Unit can not keep up with rapid charger.

Thank you!

I waited until I used every feature to write this review. Thanks to owning a Dodge Product with a 392, I was able to use the jump start function today. Here we go...Of course the first thing I did was charge the unit as directed for 36 hours. No big deal.Next, I used all the charging ports. USB is typically slow, but so were the 110 outlets. But they worked, and they charged my tablet and they all worked.After that, I went out to air up tires on 4 vehicles. It's winter so all 12 were low 3 to 8 pounds. The compressor is slow and takes a while, even for only 5 pounds. But, it worked in "set it & forget it mode" which I stumbled across never having read the directions. Set the compressor for 40psi, hook up the hose, hit the button and it charges to 40psi and turns off. Very nice!!Finally, that Dodge product didn't let me down and the battery died from sitting in the cold as expected. I read the rear directions this time that are stamped on the back of the unit. Easy and straightforward. The batter on a Charger 392 is in the trunk so I set the unit next to the battery, hooked it up, turned the unit on, then crossed my fingers and jumped in the driver's seat. Va-ROOM! She started right up.For $100, you could da a LOT worse and I have. The compressor is the weak part of this unit. It's slow, and when it gets warm, turns off to cool before using again. I'm not sure it could actually air a truck tire up from zero to 40psi. But for topping off, it's perfect and saves you a trip somewhere to do it.

Bought this because it works to jump start a Prius when the lead-acid/engine/12V battery dies. Tried multiple lithium battery based jump starters and all failed. Was told by a Prius/hybrid mechanic that many jump starters don't work with Priuses. A neighbor had an almost identical Schumacher unit that worked fine on the Prius. Not finding a local shop that carried Schumacher units I ordered this somewhat heavy unit. The weight is from the lead-acid battery in the unit. But don't worry about it leaking. It's a modern closed cell lead-acid battery. I suspect it tumble many times in shipping without issue -as designed.Yes, it's bigger and heavier than one of the pocket sized jump starters, but it will do everything one of those will do AND jump start a Prius. (Tested on second and third generation Priuses. But it should work on first and fourth gen. as well.)

Definitely a solid product. The jump start function has never failed to jump a car so far. The inflator function is very loud, but gets the job done. I'd recommend buying an adapter that clips on as I don't really like the screw on style it uses. I've never used the light function.Biggest tip I can give is to follow the charging instructions and charge it once a month or any time you use it. You will need an extension cord to charge it as the charging function is just two prongs on the back that fold down.

Let me start by saying this is the third Schumacher booster box with built in air compressor (and power sockets) that I've bought.In my job I've often needed to start cars with dead batteries, and to air up flat or deflated tires on those cars or on my own. The first one I bought (definitely a different model, but very much like this one) was supposed to satisfy that need - and it did it's job wonderfully.My only complaints were: if it was hot outside (and I live in Texas - so it's nearly always hot outside) then the air compressor would need 'cool off' periods during big jobs. And, the faceplate sticker that covers the buttons on the front started to peel on one corner. Other than those things - it was perfect. But, after about 1.5 years of use, I left it balancing on a high surface and it fell. I was crushed, and so was it. So I had to buy another one.The second one was every bit as good as the first (though the faceplate sticker still wanted to flake up and curl on one corner). And, I left it in my car one night with the doors unlocked (the night before Christmas Eve) and it was stolen. Again, I was devastated.But, by that time, my job had changed somewhat and I wasn't working with the cars as often, and it seemed like I couldn't find this style of Schumacher booster boxes. (The first two were bought through Walmart - and they seemed to suddenly stop carrying good quality booster boxes.)Anyway, time went on and I recently found myself needed to be prepared to start cars and air tires, so when Walmart failed me (again) I went to Amazon and found this little gem. If anything it seems to be even better than the first two! I've only aired tires on one of our rare cold days - and it has given me no problems at all - and the faceplate sticker seems to be re-designed and is better fastened over the buttons and isn't peeling or curling at all!(I haven't used the light at all, though. It looks cool, but until I take it camping I just won't know how good it is.)

The ease of recharging is good. The weight a bit high, but therein lies the power we want. Holds a full charge a long time. Got one to use with our fleet of assorted vehicles. The more vehicles one has, the harder it is to keep all of the batteries in peak condition. The jumper cables and clamps are of highest quality and self stow quite conveniently. The readouts are helpful.The air pump was used on one occasion. It did its job, but it was a slow process, requiring a little patience to refill a neighbor's SUV flat tire from empty to full pressure. Not the reason we purchased the Jump Starter.We liked our first Jump Starter enough to get a second unit to use as a power supply for our telescopes when in the field. Using the AC adapter capability, we can plug in the telescope's transformer power supply to provide the proper voltage to power the tracking drive and heaters (prevent fogging and condensation on electricals).The large LED readout on the unit tells us when optimal power will soon become compromised and we can safely end our stargazing session without stressing delicate electronics with low grade power. The red readout and indicators keep eyes well condition for working/playing in darkness.While the charger is turned off, hooking the jumper cables to the battery in question will give one a readout of its state. One can also use this function to verify the output of the alternator of vehicle in question, once the engine is started. Sometimes that process of elimination is helpful as a battery can initially take the blame for an alternator problem.These chargers can be rejuvenated by simply installing a new battery pack when the original expires. We have yet to replace one. Our original charger must be around 5 years old. I just topped off the first charge on our second unit.

I was having a problem with my SJ1332 holding a change and Schumacher immediately sent me a replacement product when I explained what was going on. Amazing customer service standing behind their products. Thank you!!

I didn’t pay attention to the actual details to the product ( my own fault) but I did gift it to my father for Christmas and he loved it! Perfect for gift for anyone!

I do roadside assistance as a fulltime job, and i just got tired of using my cables and having to hook my car up each time, so i bought another Schumacher because the last one worked pretty good too, until the outlet broke on it so i couldn't recharge it. It was very lightweight which is the one thing i dont like about this new jumpbox, its a bit heavy. Still nice to have, i have charged it one time since i bought it, and i got over 11 jumpstarts on all different vehicles so far and it still has 92% of life to it. Now i believe that after each jump, (because i let the box stay connected to the battery for close to a minute) i think it just kinda recharged the box. It also tells how much life is on the battery too which is pretty cool. Sorry this message is way long.