does it drain the car battery
1788949
If you have a VERY old car, it may still drain the battery. But, then, if your car is that old (like mine was), anything plugged in to the socket regardless of power draw may drain the battery.
1788950
most cars have the 9v outlet tied into the ignition, so it's not powered when the car is not running. Therefore, it won't drain your battery at all.
1788951
don't buy it. I ended up buying a plantronics ear piece which works great and is clear
828759
It has a cooling fan that runs constantly so I unplug it. The batteries seem to hold a charge for a long time so I don't bother leaving it plugged in. Most of the time it rides in the trunk of the car anyway. Take care
242458
Only if you leave a device connected to it. .. At least I have no issues with it draining my truck battery
1528836
Yes, if you use it with your car turned off. As long as the engine's running your battery won't be drained.
922835
Yes it does and works fine. But keep your car running because it may run down your battery otherwise.
1205671
No, It will not drain your battery and just to be on the safe side its better to keep your car running. If your car has an old battery then run the goddam engine. If you are stupid enough not to run it while your battery needs juice .. Just call AAA !!! ERGO use common sense while you use electronic devises that uses electricity. Har har har !!!
367986
Yes it does, it drains a little more rapidly but its like an hour difference to normal batterys. But it does work.
1266065
yes it does. i bought it for my husband and he is very happy with it. you do not need to remove it to charge it weather in the car or at the power outlet. i pray this will help you. have a blessed day.
1100902
It should not drain your battery while your car is off unless you cigarette lighter socket is wired to your battery instead of a accessory fuse. Many cars before 1992 were like this. You could get it rewired, probably for under $20 depending on your location, or DIY, if this is the case. It shouldn't drain the battery very fast though unless you have an already bad battery.
2267853
No, it will not drain. There is no LED light or anything to drain the battery.
1162189
It Doesnt. You will need to unplug it or else your battery will drain just like mine.
418425
It depends on how your car is wired. If you have a iPhone charger for your cigarette lighter, try charging the iPhone while your car is turned off. If it does, then yes anything you plug into that outlet will drain the battery when the cars off.
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!
1001719
No it doesn't, it's designed to charge the cranking battery first, then the aux. battery, when the aux. battery is too low then You need to crank the car and charge the aux battery.
1022049
Yes, the device will automatically shut off when the car is turned off. You will never have to worry about it killing your car battery.
754031
Yes it does it goes into a trickle mode to maintain the battery charge level
1308952
Robert the device plugs into your 12 volt adapter or cigarette lighter ...so there is always voltage there after you turn the car off I pull mine out a little so it does not make a connection that's the only way to disconnect from your battery. but there's no problem. I would highly recommend this product I love mine it is totally hands off thru your car speakers. Just like onstar