Will this actually charge a DEAD *CAR* battery or simply maintain? Title says it allWill this actually charge a DEAD *CAR* battery or simply maintain?
1275386
So my question I guess would be is -- if I left my lights on and car battery died overnight, could I just hook this thing up and within a few minutes, startup my car?
1275387
I left my lights on and came out to a dead battery and hooked this charger up for about an hour and was able to start the car.
1275388
I had a battery on my car so dead none of the lights on the interior would even turn on when i turned the key over and this charger got the battery to 100% in a little over 24hrs. The battery had only been dead overnight though because I left the lights on.Hope this helps, 222
1275389
No, this (G750) unit is only going to charge smaller batteries. Notice all the comments about jetskis, lawnmowers, etc. A dead car battery needs a more powerful charger and, if you actually want to start up the car, a boost capability. But as you suggest, it will keep a stored car battery from going dead.
1275390
You would probably need to go with the NOCO Genius G7200 12V/24V 7200mA Fully Automatic Battery Charger and Maintainer (Grey) it has a boost mode which is what it sounds like you're looking for.
1275391
This may seem a very stupid question, but does this plug in to your outlet in the house to charge...I cant see a plug in the pictures??? Thank you, I just hate to order and be disappointed over my own stupidity!!
1762663
When I plug mine in the red light goes on. If it's been plugged in for days it goes off. I believe this indicates a full charge. The maintainer must have some sort of circuitry measuring voltage or current from the battery so as not to overcharge.
1254326
It doesn't charge, it's an inverter which means it uses your car battery to run electronics that would normally plug into your home outlet. It only works when connected to a car battery.
150750
This would probably work fine to charge your car battery, but it would be slow. This is more of a trickle charger than a fast battery charger. There are actually some better choices out there for car batteries. I have a classic car, and I keep a Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger attached to that, and it keeps the battery totally charged. If you want a really fast charge (which is harder on your battery, it will reduce the life of the battery) you could use something like the Schumacher SE-5212A 2/10/50 Amp Automatic Handheld Battery Charger.
1665888
Yes...only if it is not completely dead. What I mean, is that batteries don't last for ever, so if your battery is on its last leg, you won't be able to make it like new again. If, however, you accidentally leave the lights on or something with a newer battery, this will charge it back up. I hope that makes sense.
166684
When you attach the maintainer to the battery it will display a digital read out of the percent of charge that the battery has. It will continue to increase the percentage as the battery charges, when at a 100% it will display " fully charged and maintaining". It don't take very long to bring a battery up to full charge, but of course it depends on the condition of the battery. I would definitely recommend the charger/maintainer.
2103598
I assume that you mean "does it stop charging once the battery is fully powered?" My understanding is that this one does that, and seems to keep the battery charged if it stays inserted. The small chargers that came with my tools did not do that.
1656958
I would say yes as long as the battery isn't totally drained. The battery needs to be charged because it's a maintainer to keep a battery fully charged all the time! I think it's to small to charge a totally dead battery. The battery tender only puts out 1.5 volts and a regular battery charger puts out 12 volts to charge a totally dead battery.
116895
I am not sure about this. It would probably depend on the the specific vehicle and its electrical system. I have heard that some manufacturers recommend removing the battery when charging it. I don't know if this recommendation applies to trickle charging/maintaining (like the BatteryMinder ). To be safe I would probably remove the battery unless you find information that states otherwise. Jim
51629
It charges a weak battery. If the battery is, for example 50% charged and it only takes several minutes to bring it back to 100%, some cells of the battery are dead rendering it useless. Won't jump start a car, not it's purpose. There are chargers/ jump starters, but be prepared to spend more $. It will, however,serve as a maintainer should you plan to leave the car sitting several days. It's all in the instructions. Be safe, read the instructions. On rare occasions batteries get hot (to the touch) meaning they are going to explode. I always touch the battery after a half hour or so.
1274030
Yeah, I saw where it said "drained" battery, but while researching these types of rechargers I saw another one that said "recharges drained batteries" but a few sentences later says, "don't use on discharged batteries" which I'm assuming means don't use this on dead batteries. Why can't they just SAY this works on completely drained batteries or not? Or am I just being too cautious? I'd hate to get this and have someone I love depend on it getting them out of a jam only to find out that welllll, it's not QUITE that good, yanno?
1976488
As others have responded, this is a trickle charger. Think of your battery as a bucket full of water that slowly evaporates over time. The purpose of this device is to keep the bucket full by keeping a very small trickle of water going into it while there is light striking its panel. It will not develop anywhere close enough to actually "fill up the bucket" should you be very, very low, and certainly can't generate enough to jump start your vehicle should the battery be very low. Its whole purpose is to make sure that the battery does not get low while you leave your vehicle unattended for weeks or months. As others have responded, this is a trickle charger. Think of your battery as a bucket full of water that slowly evaporates over time. The purpose of this device is to keep the bucket full by keeping a very small trickle of water going into it while there is light striking its panel. It will not develop anywhere close enough to actually "fill up the bucket" should you be very, very low, and certainly can't generate enough to jump start your vehicle should the battery be very low. Its whole purpose is to make sure that the battery does not get low while you leave your vehicle... » Read More As others have responded, this is a trickle charger. Think of your battery as a bucket full of water that slowly evaporates over time. The purpose of this device is to keep the bucket full by keeping a very small trickle of water going into it while there is light striking its panel. It will not develop anywhere close enough to actually "fill up the bucket" should you be very, very low, and certainly can't generate enough to jump start your vehicle should the battery be very low. Its whole purpose is to make sure that the battery does not get low while you leave your vehicle unattended for weeks or months. « Show Less
896850
No, it is a trickle charger (compared to a "smart" charger that automatically turns off) and will overcharge. Please read the instructions, which clearly state not to leave it charging for more than 8 hours. Only charge until the light turns green, then stop. They also state to recharge immediately after use, and every 30 days if not used, to keep it topped up. Apparently they don't want you to leave it in a discharged state.The battery seems to be the weak link in these rather crappy quality lights. I would do everything I can to follow the instructions and not do anything that might damage the battery or shorten its life... No, it is a trickle charger (compared to a "smart" charger that automatically turns off) and will overcharge. Please read the instructions, which clearly state not to leave it charging for more than 8 hours. Only charge until the light turns green, then stop. They also state to recharge immediately after use, and every 30 days if not used, to keep it topped up. Apparently they don't want you to leave it in a discharged state.The battery seems to be the weak link in these rather crappy quality lights. I would do everything I can to follow the instructions and not do... » Read More No, it is a trickle charger (compared to a "smart" charger that automatically turns off) and will overcharge. Please read the instructions, which clearly state not to leave it charging for more than 8 hours. Only charge until the light turns green, then stop. They also state to recharge immediately after use, and every 30 days if not used, to keep it topped up. Apparently they don't want you to leave it in a discharged state.The battery seems to be the weak link in these rather crappy quality lights. I would do everything I can to follow the instructions and not do anything that might damage the battery or shorten its life... « Show Less
1991343
This is a great battery maintainer for long term. Remember though the batteries must have a charge in them before this will maintain them. It will not charge a dead battery. Since I have purchased mine this past summer, I have never had to place the battery charger on the cart. This will keep the batteries charged and maintained as long as the batteries are not dead or you have a bad battery in the series. If we use the cart all day and charge gets low it may take more than a day to get full charge back but this unit is better for the batteries as it is a slow charge and maintains the life of your batteries so if you do not need to use the fast charger to charge, your batteries will last a lot longer.
2193558
Most "smart" chargers will not charge a completely dead battery. They require some minimal charge to start charging. We sometimes use a set of jumper cables hooked between a good battery and the one needing charging to get the charger started, then unhook the good battery and let the charger work
1958030
I wouldn't. When your car isn't running it doesn't charge and I would think there's a possibility it might discharge. You can get a good, full charge by plugging it into a USB port on your computer for about 3-4 hours and the charge should last about a month
1018944
I believe that it will. It will fully charge and maintain a motorcycle battery from dead to fully charged and it will maintain a car battery if it has a bit of a charge. There is more information in the owner's manual which I don't have with me at the moment. I use mine for my motorcycle and absolutely love it. I have a regular car charger, but this tends the battery and is much more convenient.