Aside from the info saying not to why can this not be used to float charge an automotive battery?
852854
I would suspect it does not have overcharge or float mode to protect from overcharging. There are several out there that are made specifically for maintaining a full charged 12 Volt wet cell battery for around $10 to $15. I use one by Cen-Tech for an old Jeep I have to keep the battery charged.
852855
IF you can get one that works for more than a week, you still have the issue that it is only a 650ma charger and I don't believe it is suited for that application.
659527
Yes it can. We use it on both 12v car and 12v motorcycle batteries. Just set and forget. Just make sure you select the correct size and battery type. If you're charging a deeply discharged car battery though it will take awhile as it's charge rate is only 1.1 amps.
803589
It's designed to be connected to the battery of your vehicle to recharge it. It's not designed to be connected directly to your personal electronic devices for recharging.
1007116
Yes - to a point. The best option is to keep your batteries from becoming heavily sulfated in the first place. This charger, if used perhaps for a monthly top off in a vehicular application, should prevent that.
1984843
i understand battery charger should not be wired to the battery while the vehicle is in use. good luck.
1142407
You cannot, it is made for use on a 12v system, such as that that a car runs on. If you really wanted to, you could use a 12v converter and try that, but i doubt it would work well.
1833974
It is sized to power very small electronic devices. Many things that you would normally power from a car lighter would use so much more power than this battery can supply the battery might not run then at all.
2142580
Probably not. This would charge a battery though, that could be used for a pump or inverter power source.
817235
I have only used this to run an air-compressor off of a battery charger. I don't know how it would work actually charging a car battery. Theoretically it could work but I don't think the wires are heavy enough. Have a fire extinguisher close at hand.
1869978
I used this on top of a Chevy Suburban to charge a battery which runs a pump that is independent of the main battery. This way the risk of draining the starting battery was zero. It keep the battery at full charge
1891447
Well since it is battery powered it is conceivable that that is possible but it doesn't include an adapter for that kind of charging.
492327
That is the exact purpose of this cord (for charging the "jump-start" batteries in a car). It's not a long cord since it should reach a lighter plug with the battery on the floor or seat of the car (very close). For more info on using it (and some cautions), see my review of this.
513950
I do not see any reason why not.... a car battery is a car battery - you are basically just applying trickle-charge voltage to it. But to be safe, I would, as Steven indicated, go the nocousa.com and ask them. I have one of these on our boat and it seems to work very well. We can leave it two to three weeks at a time and it cranks right up.
1661075
I doubt it'll hurt the box but I'm not sure what the draw is & what it'll do to your car's electrical system. If it were me I wouldn't chance it. It holds a charge really well anyhow.
2152207
I never left it sitting. I always had it plugged into the float charger. That is what is so frustrating, the float charger is designed to stay connected all the time to prevent battery failure. Sorry I could not be more helpful.
1480902
You could, but it would not be good for the battery and might destroy it. As a rule you don't want to charge a lead acid battery with any higher current than it can produce. A fast charge up to the rated current of the battery can be done, but a lower rate of charge than the batteries maximum makes the battery last longer.
1265234
I would not. You could easily overcharge the battery where as a regular charger has a regulator on it. This is to be used to charge another vehicle/motorcycle for a short time; until the other vehicle can be started.