Will this charger drain my car battery when its turned off? My battery was drained the day after I put it in there.
1087770
My battery didn't drain...I don't leave mine plugged in when my car is off.
1087771
You should never leave electronic devices (charging or otherwise) plugged into receptacles that power them when engine isn't running.. You wouldn't leave yourheadlights on with the engine off would you. They allare drawing power, energy from the car battery when the alternator isn't charging it up.
1166438
It shouldn't, it's designed to be a charger/conditioner and you should be able to leave it on 24/7, it'll microcharge enough to keep the battery at 100%. Most of these trickle chargers/conditioners are designed that way. And it says so in the description. That being said I haven't tried it 1st hand.
199248
No. As soon as you plug in the charger, your phone/stuff will do an emergency shutdown. All that happens to my stuff atleast.
1948804
The car charger will draw current from your car's battery. Depending on the cigarette lighter plug in your car that you use, some will allow things to still draw power when the car is shut off, some will not. If you find one that is still providing power when the car is shut off, you can leave the maglite plugged in, but if it requires a big charge it may drain too much of your battery. I would have some jumper cables handy the first time I tried it.
1158490
I had this happen to me also. I had a completely dead battery in my car when I attached the charger. I turned the key on and tried the headlights after charging for only a few minutes to check if anything was happening. The charger started clicking and cycling on and off. The noise stopped after a few minutes and it continued to charge fine after that. I believe the cycling is an overload protection. If you experience this try charging the battery while it is disconnected.
468140
Short Answer: Yes, you can keep it plugged in between uses.I tend to just keep it plugged in, if the charger is plugged in but not plugged into another device then it wont use any power. I do know that when a vehicle is off it will usually shut off as well, though one of the sockets in my Altima stays on so you can charge things while the vehicle is turned off.
335515
I am using a car battery charger bought at (B&D;) Walmart and it works fine. The battery charger need be "smart" enough to sense when the battery is full and automatically shut off. Overcharging a sealed lead acid battery would not be good.
1528836
Yes, if you use it with your car turned off. As long as the engine's running your battery won't be drained.
1778534
Your 12-volt socket is probably not energized when the car is turned off, so not an issue. If it is energized with the car off, this unit would put a small drain on the battery, so you would want to unplug it when not in use. Obviously there is no issue if the car is running.
146252
Depends. If the device is powered off it will almost always charge (slowly). If it's turned on it might either charge *very* slowly, or not at all, or even still lose charge if you're actually using the device. (You'll see the latter with high-end phones or tablets if you are running a 3D-rendered game -- the device will be using more power than any USB charger can safely deliver, so the battery will slowly drain even if it's plugged in. With a crappy charger this can happen even if the device isn't doing much.)
2111064
No the charger turns off the voltage when the battery is fully charged and the LED light changes color to alert you its done .
2219501
NO, it will remain on and drain your battery.BTW, do yourself a favor and dont buy this piece of &%$·!!%$I cant even sell it. Sucks bad!
1387913
This charger is not an "intelligent" charger - in that it does not fully analyze the state of the battery - it essentially only measures voltage, which is not sufficient to guarantee a fully charged battery or prevent the charger from continuing to attempt to charge a bad battery - which can lead to some serious safety concerns. I believe there was a safety note in the manual that stated not to leave the charger unattended while it was charging.
919568
depends on if your 12V outlet stays live when you take the key out of the ignition. If it turns off, like most cars, then the seat heater will turn off also. But if your outlet always has power, then yes, it will drain your battery.
208712
it shouldn't drain the battery, only draw a few milliamps to keep the light lit. if you have a weak or old battery you may want to unplug it to be safe. I leave mine plugged in all the time & have had no issues.
2103600
Oh.. If you are asking if the charger will shut off after the battery has been charged the answer is yes but it is recommended that you do not leave the battery connected to the charger all the time.
845172
According to the information I read the built in charger is a float charger meaning it will not overcharge if left plugged in. There is something else offered if you keep it in your vehicle, they will send you mail when it will need a recharge based on when it was last charged. I might add I am very pleased with the performance of this unit.