Is there a cable or device is that can be used for jumping an uncharged battery when using the in-the-trunk port (female, 12V) ?
1140755
I don't think anything that would have a plug on it would be heavy enough wire to jump a dead battery. If you meant to charge the battery so it will start (not have to hook it up and jump immediately without allowing other dead battery to charge) you might find one with two male ends or you could easily make one by cutting two inexpensive ones wires and making sure you align the positive wire (the one going to the middle pin on the male plug) to be positive. Keep in mind if you accidentally brush anything grounded in the care with that protruding point it could spart or short the fuse that often is in the male end or your fuse panel that is connected to your access point in either vehicle. Plugging it in like that would also require both power points in both vehicles to be on-so if it is not live when the key is not switched on it won't charge. The wires in these alligator clips is unusually heavy and would support higher voltage draw you might get with a totally dead battery on the other end. But if your wires in the vehicle are not sized that heavy you could risk fire or blow the fuse. A dead battery will draw heavily when first attached, especially if you activate the starter to try to start it, it could melt your wires or blow the fuse then. Good luck-
1140756
We bought this to use for our portable fridge when we go camping. Cannot see why it could not be used for jumping a dead battery.
1504999
Anything that supplies USB power will work. Comes with a full size USB to Mini USB cable as well as the car lighter power adapter to Mini USB.
976943
Absolutely. I did the same thing, only I used this to run from my up front battery back to my on board battery charger at the transom.
1265236
Dan, I purchased this cable to charge my Portable 12V Battery Jumper Cable unit. I have it as a "just in case" but have not actually tried it yet. Looks like it should work though.
1738189
This depends on the amp load necessary for the jump. In most cases, I would say no. These cables are designed for two amps. Jumping can require up to 600-1000 amps and would likely melt the cable. M/C and ATV batteries require less but likely still more than this cable is capable of sustaining. Since ATVs and motorcycles use low amp alternators, it would likely work as a charger allowing the running vehicle to charge the dead battery. This would not work for large vehicles (cars, trucks, etc.) as their alternators put out 60 - 150 amps.
859570
Battery capacity is 12000 mAhinput- 12volt/1Aoutput- 5V/2.1A (2 x USB port)- 12V/10A- for vehicle jump startbattery type- not specified?Cold weather performance- not specified.Jump start current: 200-400A20x jump start on full charge
2219059
With the unit unplugged you can push the test button to check the status of the battery. What did you use it for? We're you trying to start a car? It is best used for small vehicles (4 or 6 cyl) or cars were the battery is not completely dead. Have you used it before to jump a vehicle? Sometimes it is a matter of making proper contact. If you see some sparks when attaching the last cable, it should be good, if not make sure you are making proper contact. I left mine in the car for a couple of months after charging it overnight and it was still good. You might want to charge it overnight.
1138808
This unit does not come with a 12 volt (cigarette lighter style) plug. It basically has a small set of jumper cables that clamp directly to the battery.
1127703
I have never been successful using this unit to jump-start a completely dead battery. I needed it 3 times and ended up calling AAA each time. There is a circuit that looks for proper polarity before it allows current to flow. You can plug a device in the front port and you probably have 12 volts there. I don't see any point in replacing the battery as the polarity circuit makes this product useless. Worst automotive purchase I ever made.
1708208
The cord probably won't reach a trunk. Maybe you could find a 12 volt extension cord.
1791894
Unsure of the question. As far as I can recall, there is no cigar socket on my unit. I charge the unit from house current and use it on a vehicle by clipping on to the battery terminals of the car needing the jump. Have only used it once and it worked well. I guess if you wanted to do it, you could use a cigar cable in addition to jumping the battery.
1702357
This cord is used to charge my battery jumper. Not to keep your car memory.
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,
1750077
I had the same problem. Used this unit as portable power during power outages, to charge phones etc., and it works fine for that. First time I tried jumping my car (with the unit fully charged) it didn't come close to turning over the engine. Jump-started the dead car from my other car with no problem, though. Yes, the power was switched on. Very disappointed that I can't keep it in the trunk and rely on it to get me out of a jam.
36253
I don't know. My unit died after about a year. I don't think I ever actually used it to jump a vehicle, but did try to regularly removed it from the vehicle and charge it. It got so that it would not charge.
2265171
use a cigarette lighter USB adapter. If you need to hook up directly to battery add a cigarette lighter socket with battery clips.
733851
If you want something that will allow you to charge the OEM battery in directly I don't know of one. D. Myatt's link may have something. I know NightFlyer on YouTube took one and modified it to take other batteries. It appears to be a simple JST type connector so you may be able to take a connector and plug it into your lipo charger if you've got one.