J309

⭐️⭐️⭐️⭐️⭐️ "Excellent product! Very reliable and powerful, it works perfectly for keeping my car battery charged. Easy to use and built with great quality. Highly recommend for anyone who wants peace of mind on the road."

I bought this when I knew my car was going to be sitting in a parking lot for over a week (instead of my garage where my car is normally parked and driven daily). When I returned, I didn't want to get stuck if my battery was dead. I charged this device up and kept it in the back of my car while I was gone. When we returned to this lot, my car started right up. However, there was a family close buy who couldn't get their SUV started. I ran over and hooked the device up to their battery and their vehicle started right up after that. The relief on their face said it all. The wife wrote down the info on this device and said she was going to order one immediately. Even though I didn't need to save myself from headaches, it was nice to save another family who needed help. I have placed the device in the back of my wife's car (I need to order another one for car), 2 months later, I checked the status of the charging power and the lights indicated that it was still good and didn't need to be plugged in. I will recommend this device to all of my friends and family.

Poor quality - not what I've come to expect from Stanley. Bought it to get my car going after the battery got run down from a light staying on a very long time. At first, it was totally useless because the car's battery was just too flat - it could not begin to jump-start the car, despite the booster being fully charged (on receipt, I plugged in for about 24h before trying to use it, as directed), though when connected, it did provide enough juice to wake the car up somewhat (big deal). Then I discovered that its internal from-wall-AC charger is safe to use to charge a second battery via the jumper clamps, so I used it as a charger for the car's battery (while disconnected from the car of course). Once the booster showed a full charge via its lights, I disconnected it from the car and set it aside, hooked the car back to its battery, and started it up under its own power. Just in case, I took the booster with me, which still read as fully charged at this point. When I got home, I brought it back in the house and plugged it in, as the instructions make it clear that it can be left plugged in indefinitely without harm. Everyone knows how car batteries are. Run one flat even once, or leave it sitting too long while even somewhat low, and it's trash. That said, I had no choice but to keep using it for a while until I could replace it. So, some time later, I used the booster again to try to straight-up jump-start the car, this time with the car's battery still having enough charge to run everything else except the starter (enough to click its relay, that's about it) - so it was just low, not flat. The booster just baaaaarely had enough juice to get the car going. I figure it should be good for a least one more start after that, especially since I was about to take a drive to the store, and run a couple other errands, so I took it with me, STILL showing a full charge. I came back out of the store after an hour or so, and again the car's battery had only enough charge to run everything in the car but the starter -- but I expected that, so out comes the booster. Nope, no good. Despite there clearly being at least some charge in the car's battery, and the booster showing an adequate charge, the two together were not enough to do more than give the engine half a turn. I had to get a real jump start from a friend. The irony of that trip? The very first thing did when I walked in the door was to head for the automotive department to look for a new car battery. No such luck though. Had to go to the local Autozone for a compatible one (due to the need for dual top-post and side-lug connections -- thanks GM! :-P ). While I was there, I had them check the charging system -- it tested good. When I returned home, I plugged the booster back in. It sat that way for perhaps a week, until I had to unplug and move it out of the way to do some routine vacuuming in that room. When I went to plug it back in half an hour later, It no longer showed a full charge - it self-discharged somewhat just sitting on the table, idle. Guess that explains why it didn't restart the car after I got done at the store. Um, guys, the whole point of a jump-starter/booster is to get the engine started when the car's battery is totally flat, to be able to do so at least a couple of times between recharges, and to hold a full charge for weeks on end. This one failed twice, barely worked once, and didn't hold a full charge after being unplugged for just half an hour. Bottom line: don't waste your money. Go to an auto parts store and talk to one of the associates there - get a brand they will stand behind. I'd get a refund on this unit if I could, but it took too long for the failure to become evident (I'm past the return window).

Before I get into how the actual unit performs, I want to clarify that in order to charge this unit, you will need an additional power cord. The charging jack on the back of the unit is relatively small, so it may be difficult to get a cord in there. I had to cut a little bit of plastic covering off of my extension cable in order to charge the unit. Now, having said that, the jump starter is a pretty good product. It's heavy, but at the same time feels relatively cheap. I charged it fully, as the instructions specified, and it was left in the back of my car for a few weeks until it was used to jump an older model VW Jetta. It took a couple of tries, but the unit did as promised. It was used again a day or two later when the car refused to start once again. Overall, not a bad product, I just don't know how long it will really last.

This review is based on ~8 months of use. Purchase price was $70. This starter pack is useful if you have a car that sits a lot, and you cannot use a float/trickle charger (like at an apartment). I telecommute most of the time, so my car battery does not get charged much by the alternator. I noticed that the battery in my car was no longer zippy (starts up fast when the battery is good), so I bought this starter pack to supplement the car battery. I would use it multiple times before I recharged the pack. The car battery eventually became severely damaged (interior lights were completely dead) due to lack of use/charge and this pack started the car up on the first try so I could get to Sears. Stanley recommends that this pack be charged every month, regardless if it is used or not. After the purchase of a new car battery, the jump pack sat in my car for a while, but still held a charge. It was able to start the car of a stranded motorist after not being charged for weeks. Note that this starter pack cannot run a tire pump from the cigarette lighter outlet as the amp draw is limited to .5amp. Get a different unit if you plan on using it for this purpose. The LED light is quite dim, but better than nothing when you are on the side of the road without a flashlight. Buy a short extension cord to charge this jump starter, as it does not come with one.

Great product. Perfect for small car (4cyl and small 6cyl). I bought one for my mother. It payed for itself within 1.5 months. She had to use it 3 times because of a loose connection on the battery. My wife has used hers numerous times to keep her phone charged. It keeps a charge for a long time also. I pulled it out of the car after about two months and it was still showing in the green. It also has a reverse polarity indicator and on and off switch. Great for the mother. She just hooks it up, checks the indicator, turns it on, then starts the car(Nissan Sentra). A friend of mine even used it to start his truck quite a few times till he could get it to the shop (Ford F150; unknown engine size). Son uses the light to read at night. Almost didn't get it back. Great for small to mid size cars/trucks/vans. Unit is quite durable also. Unit is not heavy either. My 66 yr old mother uses it and has not problems and feels much better knowing she doesn't have to worry about a dead battery and being stranded.

The first one I bought for my husband a few years ago was great and still works great, we love it. The second one I bought for my daughter was the mid priced one, the lower price one had 3 USB spots and air pump, the one that was more expensive and I had bought my husband also had the 3 USB PORTS and air pump, the mid range one I got my daughter did not have the 3 USB PORTS or air pump. It was not clearly marked that it didn't have the 3 ports, only one or that it didn't have the air pump. Was very disappointed it that. But other than that would highly recommend the other two. Great price and works great too.

Seems to perform as advertised. But as stated in the manual, this will need to be recharged about every month or so or else the battery will go empty and get ruined. You should also note that this does not support trickle charging, so you will need to unplug it when it's done charging to avoid overcharging. This is kind of a hassle, but not that big of a deal. On the other hand, other brands seem to provide trickle charging support. I should also mention that the cables could be longer. These are something like 3-4' long. A lot of the negative reviews seem to indicate that this failed to successfully jump a car. Depending on your car, the amps needed to turn the starter over may vary. This should have no problem starting a car with just a low battery or smaller engines (say 4 cylinders), but if the battery is dead or the health of the battery is a problem, then you may fail to start your car. To see if this has enough amps, check on any auto parts store website to see the amp rating for replacement batteries for your vehicle. As an example, let's compare a I4 and V6 2007 Honda Accord. I'm using O'Reilly Auto for battery comparisons. I4: Cranking Amps range from 555 - 615. This jump starter should have no problems. V6: Cranking Amps range from 665 - 910. It is unlikely that this jump starter can start the car on a dead/dying battery. If you want to play it safe, make sure there's a safety margin between what the jump starter promises and what your battery is rated for. While it might seem somewhat expensive to step up to a higher rated jump starter (say 1000 or 1700 amps), you'll easily make back the difference the first time your car dies and no one is around to help.