I see this Yuasa is good for maintaining/storing batteries, but will it recharge a dead 12V automobile battery?
916582
Quick answer is yes. It will take awhile though. Slow charge not rapid. Your looking at 4 to 5 days of charging If your battery is still good. Remember that batteries have a memory. If they are too low for too long they will remember that level and not do say the full 12 volts. Also other factors involved.
916583
From our experience this charger may recharge a battery if it still has a little life in it. It will not recharge a completely dead battery.
916584
It will if the battery in question is still capable of holding a charge. However, it will take some time to accomplish as this charger only puts out one or two amps. Attach it to the battery and leave it alone until the green light comes on.
916585
Automatic chargers have a minimum voltage that must be met before they will start their charging cycle. If the battery is deeply discharged enough 2-3V just about the only way to bring it back is to use a small 2Amp *Manual* charger until the voltage is high enough that an automatic charger can start it's charging cycle. For a motorcycle battery you'd want to use a 1Amp *Manual* charger for the same purpose. Once it's done charging your best bet is to take it to a place that can Load Test it to determine whether it's still good or not.
916586
I haven't used it on an automotive battery yet, bet it did recharge a dead 12V motorcycle battery. Although it did take 2 days.
464620
Yes, it should work well for motorcycle batteries; in fact for almost any small 12 volt battery. Note that it will work as a MAINTAINER for both large and small batteries, but as a CHARGER only for the small ones, probably including your motorcycle battery. I believe that the manufacturer has published data regarding the sizes (capacities) that the unit is capable of charging. I hope that helps...
2023950
Yes, this past summer I used an old 12 volt car battery, but the system was turned on for about 10 hours at night-time only. For my situation, I simply charged the battery once a week. It worked fine, but a deep cycle battery would be preferred to avoid the need for frequent charging.
1738188
A charged battery for a car can produce very high current, like when starting a car. Connecting this thin cable between the 2 batteries can get very hot and cause a possible fire. With out knowing any more details, it is safer to charge the dead battery with a battery charger.
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.
1216532
I believe so. I have it charging a deep cycle 12v marine battery (car sized battery) and it does quite well. I use a charge controller as well to maintain that charge when not in use.
1838602
As the other answers, yes. It will also keep your battery in good condition. At this stage, it has restored my tractor battery and car battery, both now over 5 years old. Tractor battery was about finished until I used this charger on it, now it starts the little diesel readily. Works as advertised.
1018942
sure it will pal, keep it in dry place...it works automatically... when battery is full charge it stops sending charge...when battery need charge it will auto start it will never burn or dry your battery
2266388
If I understand your question correctly, no. If your car battery is really old and totally bad and incapable of holding a charge, I don't think this will work. It works great for a still good battery that has drained down due to leaving something on or something of that nature.
976693
Yes but it draws around 3 amps which would require a very large 12 volt battery. It could easily drain a car battery in just one night.
1248349
That should work. I use mine to maintain six 6 volt batteries in my golf cart. However I wouldn't use this device as a charger. I think it would take quite awhile to charge batteries that are low. It's main function is to maintain a charge. You might call the company. They were real helpful in answering some questions I had when I bought mine.
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.
51215
I would recommend getting a electrical charger. This one is more for something that you don't drive very often like a atv or a lawnmower. This only being 2.4 watts, isn't powerful enough to charge a car battery. It's really just for maintaining. I bet it would take a long time to fully charge a car battery.
2035445
According to Yusa's website you need battery Battery Type: YT12A-BShttp://www.yuasabatteries.com/vehicle_search.php?action=showListing
52419
Yes. You can recharge 12v batteries with this unit. You can also charge cell phones and other portable electronic devices that use a 12v socket like you find in your vehicle to recharge. We carry cables for all sort of connectors; such as eye hooks, terminal post, or 12v male/female sockets.
2121342
should work fine off a battery and using this to keep it charged.. shouldn't used it directly because of voltage fluctuations with clouds and weather.. will put out up to 6 amps in good sunlight...
990238
Yes it will charge any 12-volt automotive battery quite well. It will NOT work on my older 6-volt automobiles....JOHN