I purchased this battery pack 3 years ago, it gave my 98’ Towncar numerous boosts before a mechanic determined I had a faulty starter. It has jumped an F150, Honda Civic aided neighbors with battery jumps. I use it to inflate the tires of our vehicles as well as our bikes. Also during Power outages this gave us a way to charge our cell phones and an extra light. Very useful during the distressed times after Hurricane Laura & Hurricane Delta.

After only 1 year and 1 mild use it is going haywire. Turns on by itself randomly drains the battery and the compressor will just start on it's own, lights will flash. Acts like something from an 80s tech movie. Straight junk. Dissapointing for a stanley product, especially since this is apparently a known issue. Should have done more research but I trusted the Stanley name... Won't do that again.

These have sealed lead acid batteries, are unreliable in the winter months, and last less than a year. I used mine well for summer camping months until dampness broker my first one. The second one lasted 8 months before no longer retaining a charge. The inflator does not fill one truck tire from 24psi to 36 psi without over heating and slowing down its ability tremendously. I personally am looking to invest in separate battery/charging jumpers and an inflator so when one goes, replacement is less waste and easier on the wallet. There is no spec about the amp hours this holds.

The battery on my v8 titan was dead and this had no trouble jumping me every day for a week until I could get it replaced. It also had no issues inflating my low truck tires. It's great for power outages too to keep my phone charged. I've had mine for over 3 years with no issues. I take it camping, too. It works great with my golf cart batteries if they get too low in the winter and the charger wont work. Perfect for golf cart tires and bike tires and recharging the portable speaker around the campfire.

So I bought one of these says to plug in and charge for 24 hours . So I did that mayne few more well it over charged and never stopped beeping. So I purchased a second one again it says charge for 24 hours out the box . Was on not even 12 hours and now just beeping non stop .

This is an excellent jump starter, despite the numerous complaints about battery life and charge woes--I have a great and automatic solution for this, which I found online. The battery complaints all result from the same two issues: 1. Over charging the battery by leaving plugged in for too long, or 2. Under charging the battery by leaving it unplugged for too long. If you follow the manufacturer's charge specifications, which for this unit is 40 hours of charge every 30 days, the unit is extremely reliable. Of course, no one can possibly keep up a charging routine this rigorous by memory or habit. Inevitably we forget to plug it in or to unplug it and then the internal battery sustains irreversible damage. To fix this problem forever, I purchased a Charge-o-matic device online. This inexpensive device plugs in between the wall outlet and your jumpstart box. Set the hours knob to 40 hours and the days knob to 30 days. Press START. You're done with battery maintenance forever! It even picks up where it left of if there is a power outage. It's so easy, it's stupid. Stanley's made a great unit here, it's just that folks aren't following the directions. Trust me, with the 1200 peak amps and alternator check feature, it's actually a very good value.

We've had this for a few months with little overall usage, and the battery will no longer hold a full charge. The best you are able to get is 50%, which is enough to inflate 1, MAYBE 2 tires. Jump starting is the luck of the draw. I have had to jump my neighbor's car a few times this year and 25% of the time does it have enough battery power to actually jump the car without another full (50%) charge.

It's GREAT,love it.great buy now with 30 bucks off you cant go wrong. I read most of the reviews here and i dont understand all the bad ones. #1 thing when you get home take it out of the box.,grab and extension chord and plug it up. It clearly syates to fully charge before use , it says to charge 40 hours or until it shows 4 full bars on the unit stating its fully charged. it comes partially charged . my was at 12 it goes to 14 it took mine only about 3 hours to reach fully charged , when it did i hooked it up to a battery on my f150 v8 5.0 engine that only had 9 volts in the battery and it cranked it right up. .GREAT ITEM at GREAT PRICE. everyone needs one.

after 6 months couldnt jump anything anymore. charge it fully and wont jump anything acts dead. but compressor and charging ports work. just cant jump vehicles. also after filling up 3 tires even a few psi. starts flashing the battery is almost dead.

I purchased a unit and used it a few times. Worked fine. Now the unit doesn't hold a charge and the air compressor fails to Work. Shame on the seller of this product. It's should be advertised as operial for only a few times. Shame on you!!!