If you have a drained out car battery, can you plug the Jumpstarter into the DC plug in the car, then plug the AC charger for the Jumpstarter into a 1
1692776
No, all it does is give you an extra few minutes to leave your cabin lights on when it is freezing outside. Or it makes your starts in cold weather faster or easier rather than slow and struggling. It's really best for giving you extra charge when you leave your lights on in cold weather for a little too long, but it won't charge a drained battery. One of the great things as the previous person said is that it can charge accessories like GPS or Dash Cams without draining your battery while the car is off, I think for that alone it was worth it.
1692777
Don't understand the question. Think maybe you would have take the Jumpstarter out of the DC plug to charge the car battery. Hope that helps.
1692778
They don't make that point clear in their advertisement which is why I bought it. The paper work included with the charger states that is does NOT work on a drained or dead battery. Save your money and get AAA instead. They are always able to start the car for you when your battery is dead!
1692779
Ospreyy, I don't have the instruction pamphlet in front of me, but I think it states that it won't work on a dead battery. You also have to make sure that the polarity of the plug and DC or cigarette lighter are compatible. It didn't work for me, but then my battery was really drained. I ended up calling AAA.
1060030
It's not meant to be a battery charger. It's for emergency use like jump starting your vehicle. You can use some of the other feature like air compressor for tire if you like. If you are looking for a good car battery charger try the Schumacher SE-82-6 ($24) - just attached cable, plugin the power cord to your AC outlet and wait a few hours for the battery to charge up. BTW, most car batter charger uses your AC outlet to charge the battery. Hope this helps.
1230124
This is not a jump starter, it is a trickle charger. You can attach it to any 12 volt battery and let it charge for several hours or overnight. If the battery will hold a charge it will likely charge it up. Also if you leave it connected it will maintain a battery with a full charge. You can buy a battery type jump starter for somewhere between $40 and a $200 dollars.
1274033
I agree with what's been posted. I'd like to get it for a gift for someone, but have several unanswered questions. How long does it retain it's charge? How many times can it be used before being recharged (ie, can it jump start your car twice on the same day)? Does it have to be recharged by plugging it into a wall outlet, or can it be recharged though the car's cigarette lighter when the car is running normally (ie, the reverse of what it does to jump start the car)? Anyone know this stuff? :)
126953
Yes you can, input is 12v DC so you can go directly from cigarette lighter to the booster. Battery charge progress is displayed on the LCD screen and will tell you when to disconnect.
1396050
If you want to try to "charge" one car from another using the lighter plugs, I'd go with a device like the Wagan 9796 Jumper. That is intended for that purpose where it "limits" the power sent (to avoid burning fuses or wires from high draw going from a running car to a low battery), but also sends ~7 amps to be a fair charge rate.This is really for the purpose of recharging "jump-start" small battery packs while you are driving a car. The charge power will only be ~8 amps or less for that charging, jumping a car can pull 30+ amps that'll burn these wires.
1373727
Disconnect ANY battery charger from the vehicle, before running the vehicle. Slamming the battery and most importantly the electronics of the auto with two different charging inputs, is not a healthy idea for those auto computers.
1502784
Yes it comes with its own ac adapter AND it can be left plugged into a outlet indefinitely with no danger of over charging and ruining the internal battery, thus the unit will always be ready for action. Great piece of equipment. Pricey but you get what you pay for. I tried numerous other jump starters which were garbage. I did a lot of research and came up with this one. Hope this helpsRon
1322737
That cord is meant for recharging the unit not to jump start a car, You can not jump start any car that way with any product (only charge). The only thing you can do is do a slow low amp charge through the auxiliary power outlet ( I am a ASE certified tech and have seen people do much harm to the cars power outlet) Like others have said that outlet is fused and the biggest fuse I have seen is a 20 amp on that circuit, that is not enough amps to start a car.
855106
No, it is a jump starter, air pump, and 12VDC cigarette lighter output only. So it will run your car USB charger for a cell phone but there is no AC capability.
1139791
If you think this is a charger then you may be wrong. It is a jump starter only. If you are referring to charging the unit itself all you need is an extension cord to plug into the back (117 V AC)
418997
No. All positive connections to the start battery remain the same, but you can move some accessories from the start batt to the aux batt so when your alternator is not running and you are using accessories, it will not drain your start batt. Hope this was helpful.
1244096
It will draw power from the car battery but the alternator will recharge it fine. Only issue would be if you recharged it a few times without running you car. Then you might have to get your car jumped!
847121
YOU SHOULD HAVE A CROSS OVER CABLE COMING WITH THIS PUMP, YOU CAN USE IT TO CONNECT THE PUMP + / - TERMINAL WITH YOUR CAR BATTERY. (Red to Red, Black to Black) YOU CAN TRY THIS WAY TO CHARGE THE PUMP BATTERY, YOU DON'T HAVE TO START THE CAR IF YOUR CAR IS NEW, (And you should turn off the pump when charging) YOU CAN CHARGE IT FOR 30 MINUTES AND SEE ANY DIFFERENCE. If your car battery can charge the pump well, then the charger may have problem. otherwise it could be the battery problem. But if you leave the battery empty and without charging back for 3 months. you may have the battery damage. You can use battery recovery charger to help it a little bit. but I am not sure how bad your situation now. It could be another issue, the wire from the charger teminal to battery was damage, you can open the shell of battery box and find out. But if the battery charger light can turn red / green even half second. then it won't be this issue. Since mailing back the pump may cost you more money, I will suggest you can order the parts from ebay (USA). many 7AH Lead Acid battery will cost you about $20 to get them. If your charger has problem. you can send it back and we will replace a new one for you. regards,
1396048
This is used to charge a battery pack thru your cigarette lighter.DC to DC charging. Ex.600 amp jump starter pack. To charge that type of pack you need a 12 volt charger
1230125
No... this will only maintain a battery. Need a 20A instant charger... there are ones out there. Just use a car battery and jumpters.
1321103
Probably not a good idea. First because there is only one set of clamps, which would require some unusual means to connect to the second battery. Second, should a means be found, the high charging current from a fresh to an exhausted battery would possibly burn out the small gauge wires. There is a reason that jumper cables are heavy gauge and preferably made of copper: They often are required to carry large electrical current,